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Journal articles on the topic 'N-acetyl derivatives'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Patel, H. S., and H. D. Desai. "Synthesis of Some New Azetidinone Derivatives Containing Aryl Sulfonyloxy Group." E-Journal of Chemistry 1, no. 4 (2004): 194–98. http://dx.doi.org/10.1155/2004/258752.

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Some novel azetidinone derivatives containing aryl sulfonyloxy group have been prepared. The 4-sulfonyloxy aniline derivative (2) has been prepared by reaction of 4-nitro phenol (sodium salt) with N-acetyl sulfanilyl chloride (ASC) followed by hydrolysis by ethanolic HCl. This compound (2) undergoes facile condensation reaction with aromatic aldehydes to yield different Schiff’s bases (3a-h). Cyclocondensation of compounds (3a-h) with chloro acetyl chloride yields different 2-azetidinone derivatives (4a-h).

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2

Kaválek, Jaromír, Josef Jirman, Vladimír Macháček, and Vojeslav Štěrba. "An anomalous effect of methyl group on acidity of acylthioureas." Collection of Czechoslovak Chemical Communications 52, no. 8 (1987): 1992–98. http://dx.doi.org/10.1135/cccc19871992.

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Dissociation constants and methanolysis rate constants have been measured of 1-acetyl- and 1-benzoylthioureas and their N-methyl derivatives. Replacement of hydrogen atom at N(1) (next to the acyl group) by methyl group increases the acidity of the benzoyl derivative by one order, that of the acetyl derivative by as much as two orders of magnitude. Replacement of both hydrogens at N(3) by methyl groups lowers the methanolysis rate constant by more than two orders, whereas the replacement of hydrogen atom at N(1) by methyl group increases the methanolysis rate by the factor of 30.

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3

Kaválek, Jaromír, Josef Jirman, and Vojeslav Štěrba. "Kinetics and mechanism of rearrangement and methanolysis of acylphenylthioureas." Collection of Czechoslovak Chemical Communications 50, no. 3 (1985): 766–78. http://dx.doi.org/10.1135/cccc19850766.

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S-Acyl-1-phenylthioureas and their 3-methyl derivatives are rearranged to 1-acyl derivatives of thiourea in methanolic solution. The rearrangement of the 1-acyl-1-phenyl derivative to the thermodynamically more stable 3-acyl derivative is subject to specific base catalysis. The rearrangement of acetyl group is about 2 orders of magnitude slower than that of benzoyl group. 1-Acetyl-l-phenylthiourea undergoes base-catalyzed methanolysis (giving phenylthiourea and methyl acetate) instead of the rearrangement. The methanolysis rates of l-acyl-3-phenylthioureas and their N-methyl derivatives have b

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4

Rodríguez, Ricaurte, Omar León, Felipe Quiroga, and Jonnathan Cifuentes. "N-{2-[(3-Oxo-1,3-dihydro-2-benzofuran-1-yl)acetyl]phenyl}acetamide." Molbank 2021, no. 3 (2021): M1244. http://dx.doi.org/10.3390/m1244.

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With the aim of obtaining different derivatives belonging to the isoindolo[2,1-a]quinoline family, we have synthesized a novel N-{2-[(3-oxo-1,3-dihydro-2-benzofuran-1-yl)acetyl]phenyl}acetamide derivative by a Claisen–Smichdt-type condensation reaction in 75% yield.

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5

Ibrahim, Hassan K., Sayed H. El-Tamany, Reda F. El-Shaarawy, and Ibrahim M. El-Deen. "Synthesis and investigation of mass spectra of some novel benzimidazole derivatives." Macedonian Journal of Chemistry and Chemical Engineering 27, no. 1 (2008): 65. http://dx.doi.org/10.20450/mjcce.2008.248.

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2-Substituted benzimidazoles (3) and (4a-c) were prepared via condensation of ethyl 2-thionyl-pyruvate (1) and hydrazidoyl derivatives (2a-c) with o-phenylene diamine in acetic acid. Acetylation of compound (4a) with acetic anhydride yielded the corresponding N-acetyl derivative (5). Treatment of compound 4b with hydrazine hydrate gave the corresponding hydrazino derivative (6). Reaction of 2-[(2-thionyl)acetyl)] benzimidazole (3) with hydrazine hydrate gave the pyrazolyl derivative (7) and hydrazino derivative (8). Alkylation of compound 3 with alkyl halide gave the corresponding 2,3-disubsti

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6

Hickman, RJS, BJ Christie, RW Guy, and TJ White. "Synthesis of Aromatic S-Sustituted Derivatives of N-Acetyl-L-cysteine." Australian Journal of Chemistry 38, no. 6 (1985): 899. http://dx.doi.org/10.1071/ch9850899.

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A new method for the preparation of aromatic, S-substituted derivatives of N-acetyl-L- cysteine is described. The method involves nucleophilic substitution of aromatic iodides by N-acetyl-L- cysteine in the presence of copper(I) iodide, and provides the first example of nucleophilic substitution of unactivated aromatic halides by N-acetyl-L- cysteine . The method has been used to prepare N-acetyl-S-(2-thienyl)-L- cysteine and N-acetyl-S-(3-thienyl)-L- cysteine from 2-iodothiophen and 3-iodothiophen respectively. In addition, the method has been successfully applied to iodobenzene and 1-iodonap

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7

Khan, Khalid A., Hassan M. Faidallah, and Abdullah M. Asiri. "Synthesis and Biological Evaluation of New N,N′-Bis(1-substituted-ethylidene)-ethane1,2-diamine and Their Acetyl and Trifluoroacetyl Derivatives as Cytotoxic and Antimicrobial Agents." Journal of Chemistry 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/478635.

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Several Schiff bases2have been prepared by the condensation of various methyl ketones1with 1,2-ethylenediamine. Subsequent acylation of these Schiff bases with trifluoroacetic anhydride in THF yields the corresponding trifluoroacetyl derivatives3. However,o-hydroxy- ando-methoxy-substituted derivatives yielded substituted-trifluoromethylchroman-4-ones. Additionally, Schiff bases when reacted with acetic anhydride afforded the C-acetylated derivatives4. The structures of the isolated compounds were fully determined by spectral methods. Preliminary biological screening of the prepared compounds

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8

Patel, H. S., H. D. Desai, and H. J. Mistry. "Synthesis and Antimicrobial Activity of Some New Piperazine Derivaties Containing Aryl Sulfonyloxy Group." E-Journal of Chemistry 1, no. 2 (2004): 93–98. http://dx.doi.org/10.1155/2004/732420.

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NovelN-substituted piperazine derivatives containing sulfonyloxy aniline moiety have been prepared. The various 4-sulfonyloxy aniline (SA) derivatives (2a-h) have been prepared by the condensation reaction ofN-Acetyl Sulfanilyl chloride (ASC) and sodium phenates followed by hydrolysis. The SA derivatives are then reacted with chloro acetyl chloride to give corresponding (N-Chloroacetyl) derivatives (3a-h). These derivatives are then reacted withN-phenyl piperazine to yield the corresponding piperazine derivatives (4a-h).

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9

Feng, Jianhao, and Chang-Chun Ling. "An efficient conversion of N-acetyl-d-glucosamine to N-acetyl-d-galactosamine and derivatives." Carbohydrate Research 345, no. 17 (2010): 2450–57. http://dx.doi.org/10.1016/j.carres.2010.09.008.

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10

Zhang, Jingjing, Wenqiang Tan, Qing Li, Fang Dong, and Zhanyong Guo. "Synthesis and Characterization of N,N,N-trimethyl-O-(ureidopyridinium)acetyl Chitosan Derivatives with Antioxidant and Antifungal Activities." Marine Drugs 18, no. 3 (2020): 163. http://dx.doi.org/10.3390/md18030163.

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Chitosan is an active biopolymer, and the combination of it with other active groups can be a valuable method to improve the potential application of the resultant derivatives in food, cosmetics, packaging materials, and other industries. In this paper, a series of N,N,N-trimethyl-O-(ureidopyridinium)acetyl chitosan derivatives were synthesized. The combination of chitosan with ureidopyridinium group and quaternary ammonium group made it achieve developed water solubility and biological properties. The structures of chitosan and chitosan derivatives were confirmed by FTIR, 1H NMR spectra, and

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11

Sekar, M., S. Vanitha, and K. J. Rajendra Prasad. "Synthesis of Novel 3-Acetyl-2-hydroxy-1-N,N-diacetylaminocarbazole Derivatives." Zeitschrift für Naturforschung B 49, no. 5 (1994): 687–90. http://dx.doi.org/10.1515/znb-1994-0521.

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Abstract The synthesis of hitherto unknown 3-acetyl-2-hydroxy-1-N,N-diacetylaminocarbazole (3a-f), is reported. The hydroxyiminocarbazoles (2a-f), prepared from 1-oxo-1,2,3,4-tetra-hydrocarbazoles (1a -f) on treatment with acetyl chloride in acetic anhydride yielded the title compounds (3a-f).

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12

Raev, Lyubomir Dimitrov, Ivo Christov Ivanov, Henri Angel Astroug, Wolfgang Frey, and Silviya Georgieva Agontseva. "Synthesis of some 6-alkylureido-4-aryl-2(1H)-pyridones: further transformations and pharmacological activity." Zeitschrift für Naturforschung B 70, no. 11 (2015): 797–807. http://dx.doi.org/10.1515/znb-2015-0066.

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AbstractThe Michael addition of enaminoesters to coumarins (1) does not lead to the formation of simple adducts 3 but to the rearranged 4-aryl-2-pyridone 4a. Now, N-carbamoylation of the 6-amino-2-pyridone 4a with alkyl isocyanates and further transformation of the corresponding novel ureido-2-pyridone derivatives 6a–g into chromeno[3,4-c]pyridines 5d,g and O-acetyl derivatives 7a–g are reported. All newly synthesized compounds were characterized by means of 1H/13C NMR, MS, IR spectra and elemental analysis. The structure of the ureide 6f and of the N-cyclohexyl-O-acetyl derivative 7g were add

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13

Wang, Fang, Chun Wang, Jie Wang та ін. "N ɛ -acetyl lysine derivatives with zinc binding groups as novel HDAC inhibitors". Royal Society Open Science 6, № 6 (2019): 190338. http://dx.doi.org/10.1098/rsos.190338.

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HDAC inhibitors have been developed very rapidly in clinical trials and even in approvals for treating several cancers. However, there are few reported HDAC inhibitors designed from N ɛ -acetyl lysine. In the current study, we raised a novel design, which concerns N ɛ -acetyl lysine derivatives containing amide acetyl groups with the hybridization of ZBG groups as novel HDAC inhibitors.

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14

Akther, Arifa, Mohammad Rashedul Haque, Mohammad A. Rashid, and Md Wahab Khan. "In vitro Antimicrobial Activity of Some Synthetic Indolium Chloride Derivatives." Dhaka University Journal of Pharmaceutical Sciences 19, no. 2 (2020): 133–37. http://dx.doi.org/10.3329/dujps.v19i2.50628.

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A total of eight compounds including four starting materials and four indolium chloride derivatives were tested against Gram positive and Gram negative bacterial and fungal strains. Among them, N-acetyl-2- acetylindoliumchloride (8) exhibited significant antimicrobial activity at a concentration of 200 μg/disc, while the Nacetyl- 2-benzoylindoliumchloride (9) showed moderate activity at 400 μg/disc. At the same time, N-acetyl-2- anisoylindoliumchloride (10) and N-acetyl-2-tolylindoliumchloride (11) demonstrated weak antimicrobial activity. Dhaka Univ. J. Pharm. Sci. 19(2): 133-137, 2020

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15

Edwards, Oliver E., Dusan Dvornik, Ralph J. Kolt, and Barbara A. Blackwell. "Formation, reactions, and NMR spectra of 1,20-cycloatidanes." Canadian Journal of Chemistry 70, no. 5 (1992): 1397–405. http://dx.doi.org/10.1139/v92-178.

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Imines derived from the alkaloid atisine gave N-acetyl 1,20-cycloatidane derivatives when heated with acetic anhydride. Vigorous alkaline hydrolysis cleaved the cyclopropane ring, regenerating the parent imine. The 1H and 13C NMR spectra of several 1,20-cyclo derivatives have been assigned and compared to those of the parent imines 2. All of the N-acetyl compounds showed doubling of the majority of the NMR resonances, due to amide rotamers. The effects of the cyclopropane ring current are noted.

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16

Abbasi, Muhammad Athar, Aziz-ur-Rehman, Muhammad Zahid Qureshi, et al. "2-Phenitidine derivatives as suitable inhibitors of butyrylcholinesterase." Brazilian Journal of Pharmaceutical Sciences 49, no. 1 (2013): 127–33. http://dx.doi.org/10.1590/s1984-82502013000100014.

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This manuscript reports the synthesis of a series of N-substituted derivatives of 2-phenitidine. First, the reaction of 2-phenitidine (1) with benzene sulfonyl chloride (2) yielded N-(2-ethoxyphenyl) benzenesulfonamide (3), which further on treatment with sodium hydride and alkyl halides (4a-g) furnished into new sulfonamides (5a-g). Second, the phenitidine reacted with benzoyl chloride (6) and acetyl chloride (8) to yield the reported N-benzoyl phenitidine (7) and N-acetyl phenitidine (9), respectively. These derivatives were characterized by infrared spectroscopy, ¹H-NMR, and EI-MS, and then

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17

Zincircioğlu, S. Burhanedtin, Naime Canoruç, Şemsettin Osmanoğlu, M. Halim Başkan, I. Yeşim Dicle та Murat Aydın. "Electron Paramagnetic Resonance of Some γ-Irradiated Amino Acid Derivatives". Zeitschrift für Naturforschung A 61, № 10-11 (2006): 577–82. http://dx.doi.org/10.1515/zna-2006-10-1110.

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γ -Irradiated powders of N-acetyl-L-arginine, Nα -carbamyl-L-arginine, N-glycyl-L-leucine and glycyl-L-alanine were investigated at room temperature by electron paramagnetic resonance. The observed species in N-acetyl-L-arginine and Nα -carbamyl-L-arginine were attributed to the CH2CHNHCNHNH2 radical, and those in N-glycyl-L-leucine and glycyl-L-alanine powders to (CH3)2CCH2 and CH3CHCOOH radicals.

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18

Krečmerová, Marcela, Hubert Hřebabecký, and Antonín Holý. "Synthesis of 5-Phenylcytosine Nucleoside Derivatives." Collection of Czechoslovak Chemical Communications 61, no. 4 (1996): 645–55. http://dx.doi.org/10.1135/cccc19960645.

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Reaction of silylated 5-phenylcytosine with 1-O-acetyl-2,3,5-tri-O-benzoyl-D-ribose, catalyzed with tin tetrachloride, and subsequent methanolysis afforded 5-phenylcytidine (2). This compound reacted with thionyl chloride in acetonitrile to give cyclic sulfite 3 which on heating in dimethylformamide was converted into 2,2'-anhydro-1-(β-D-arabinofuranosyl)-5-phenylcytosine (4). Analogous reaction of compound 2 with thionyl chloride at reflux gave 5'-chloro-5'-deoxy-2',3'-cyclic sulfite 5. Its heating in dimethylformamide afforded 5'-chloro-2,2'-anhydro derivative 6, mild alkaline hydrolysis led

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19

Raev, Lyubomir Dimitrov, Ivo Christov Ivanov, and Silviya Georgieva Agontseva. "Addition of some 6-amino-4-aryl-2(1H)-pyridones to phenylisocyanate and related reactions." Zeitschrift für Naturforschung B 74, no. 2 (2019): 191–95. http://dx.doi.org/10.1515/znb-2018-0184.

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AbstractThe Michael addition of enaminoesters to coumarins leads to the formation of the rearranged adduct 1 whose structure has been previously elucidated by X-ray crystallographic analysis. Now, N- and/or O-carbamoylation of the 6-amino-2-pyridone 1 by treatment with phenyl isocyanate in a molar ratio of 1:1 and 1:2 gave N-mono- (2a) or N,O-bis-(phenylcarbamoyl) (3) derivatives, respectively. Further transformations of the corresponding new 2-pyridone derivative 2a into the O-acetyl derivative 2b and the chromeno[3,4-c]pyridine 4 are reported as well.

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20

Shen, J., K. Ghai, P. Sompol, et al. "N-acetyl serotonin derivatives as potent neuroprotectants for retinas." Proceedings of the National Academy of Sciences 109, no. 9 (2012): 3540–45. http://dx.doi.org/10.1073/pnas.1119201109.

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21

Seo, Jeong-Ah, Jin-Cheol Kim, and Yin-Won Lee. "N-Acetyl Derivatives of Type C Fumonisins Produced byFusariumoxysporum." Journal of Natural Products 62, no. 2 (1999): 355–57. http://dx.doi.org/10.1021/np980371h.

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22

SHISHKIN, E. V. "ACYLATION OF N-PHOSPHORYLATED MONOIMIDATES." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 12(283) (December 2023): 51–53. http://dx.doi.org/10.35211/1990-5297-2023-12-283-51-53.

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A method has been developed for the preparation of organophosphorus derivatives of imidic acids, based on the acylation of N-phosphorylated mono-carbon active methylene group. The interaction of sodium derivatives of monoimidates with acid chlorides leads to the formation of the corresponding monoacylated derivatives, for which inhibition of acetyl esterase, esterase hydrolase, cutinase and other enzymes is highly predicted.

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23

S., SIVASUBRAMANIAN, MUTHUSUBRAMANIA S., and GEETHA A. "PMR Spectral Study of N-Nitroso- and N-Acetyl-3,5-diaryl-2-pyrazolines." Journal of Indian Chemical Society Vol. 74, Aug 1997 (1997): 641–42. https://doi.org/10.5281/zenodo.5891864.

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Department of Organic Chemistry, Madurai Kamaraj University, Madurai-625 021 <em>Manuscript received 7 April 1996, accepted 6 June 1996</em> PMR Spectral Study of N-Nitroso- and N-Acetyl-3,5-diaryl-2-pyrazolines.

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24

Bowman, Mark A. E., and Ralph E. Bowman. "Experiments towards the Synthesis of the Ergot Alkaloids and Related Structures. Part 7.1 Novel Syntheses of some 4-Acyl-2,3,4,4a,5,6-hexahydrobenzo[f]quinolin-2-ones." Journal of Chemical Research 23, no. 2 (1999): 94–95. http://dx.doi.org/10.1177/174751989902300214.

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Reaction of the N-formyl enol-lactone 4 and the corresponding N-acetyl 10 and N-methoxycarbonyl 11 derivatives with bis(trimethylsilyl)potassiomalonate in THF at 60°C followed by treatment with aqueous sodium hydrogen carbonate and cyclisation as above, yielded the 4-formyl-, 4-acetyl- and 4-methoxycarbonyl-tricyclic ketones 7, 13 and 14 in yields of 31, 35 and 36%, respectively.

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25

Ravindra, S. Dhivare, and S. Rajput Shankarsing. "SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF FIVE MEMBERED CYCLIC IMIDE DERIVATIVES OF MONO, DI AND TRI SUBSTITUTED AROMATIC AMINES AND NAPTHYL AMINE." World Journal of Pharmaceutical Research 4, no. 6 (2019): 1650–58. https://doi.org/10.20959/wjpr20156-3632.

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The five-membered cyclic imide derivatives were prepared by reacting succinic anhydride with substituted aromatic amines and naphthyl amine to get 3-(N-phenyl carbamoyl) propanoic acid and 3-(N-napthylcarbamoyl) propanoic acid. These intermediates underwent ring closer with acetyl chloride furnished five-membered cyclic imides derivatives. All these derivatives were screened for antimicrobial activities.

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26

Thirunarayanan, Ganesamoorthy, and K. Ravi. "Synthesis and Spectral Correlation Study of some 3-(3,4-dichlorophenyl)-5-(Substituted Phenyl)-4,5-dihydro-¹H-Pyrazole-1-yl-Ethanones." International Letters of Chemistry, Physics and Astronomy 19 (October 2013): 44–57. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.19.44.

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Some N-acetyl pyrazoles including 3-(3,4-dichlorophenyl)-5-(substituted phenyl)-4,5-dihydro-1H-pyrazole-1-yl-ethanones have been synthesised by solvent free cyclization cum acetylation of chalcones including substituted styryl 3,4-dichlorophenyl ketones using hydrazine hydrate and acetic anhydride in presence of catalytic amount of fly-ash: H2SO4 catalyst. The yield of these N-acetyl pyrazole derivatives are more than 75%. The synthesised N-acetyl pyrazoline derivatives were characterized by their physical constants and spectral data. The infrared spectral νC=N and C=O (cm-1) frequencies, NMR

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27

Thirunarayanan, Ganesamoorthy, and K. Ravi. "Synthesis and Spectral Correlation Study of some 3-(3,4-dichlorophenyl)-5-(Substituted Phenyl)-4,5-dihydro-<sup>1</sup><i>H</i>-Pyrazole-1-yl-Ethanones." International Letters of Chemistry, Physics and Astronomy 19 (October 2, 2013): 44–57. http://dx.doi.org/10.56431/p-7i78p0.

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Some N-acetyl pyrazoles including 3-(3,4-dichlorophenyl)-5-(substituted phenyl)-4,5-dihydro-1H-pyrazole-1-yl-ethanones have been synthesised by solvent free cyclization cum acetylation of chalcones including substituted styryl 3,4-dichlorophenyl ketones using hydrazine hydrate and acetic anhydride in presence of catalytic amount of fly-ash: H2SO4 catalyst. The yield of these N-acetyl pyrazole derivatives are more than 75%. The synthesised N-acetyl pyrazoline derivatives were characterized by their physical constants and spectral data. The infrared spectral νC=N and C=O (cm-1) frequencies, NMR

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28

Abdelkader, Ines, Jose M. Guisán, Adel Sayari, and Gloria Fernández-Lorente. "Various Strategies for the Immobilization of a Phospholipase C from Bacillus cereus for the Modulation of Its Biochemical Properties." Molecules 29, no. 7 (2024): 1467. http://dx.doi.org/10.3390/molecules29071467.

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In this study, the effect of various immobilization methods on the biochemical properties of phospholipase C (PLC) from Bacillus cereus obtained from the oily soil located in Sfax, Tunisia, was described. Different supports were checked: octyl sepharose, glyoxyl agarose in the presence of N-acetyl cysteine, and Q-sepharose. In the immobilization by hydrophobic adsorption, a hyperactivation of the PLCBc was obtained with a fold of around 2 times. The recovery activity after immobilization on Q-sepharose and glyoxyl agarose in the presence of N-acetyl cysteine was 80% and 58%, respectively. Furt

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29

Staehelin, Christian, Michael Schultze, Ken Tokuyasu, et al. "N-Deacetylation of Sinorhizobium meliloti Nod Factors Increases Their Stability in the Medicago sativa Rhizosphere and Decreases Their Biological Activity." Molecular Plant-Microbe Interactions® 13, no. 1 (2000): 72–79. http://dx.doi.org/10.1094/mpmi.2000.13.1.72.

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Nod factors excreted by rhizobia are signal molecules that consist of a chitin oligomer backbone linked with a fatty acid at the nonreducing end. Modifications of the Nod factor structures influence their stability in the rhizosphere and their biological activity. To test the function of N-acetyl groups in Nod factors, NodSm-IV(C16:2,S) from Sinorhizobium meliloti was enzymatically N-deacetylated in vitro with purified chitin deacetylase from Colletotrichum lindemuthianum. A family of partially and completely deacetylated derivatives was produced and purified. The most abundant chemical struct

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30

Wang, Ling, Qi-Feng Chen, and Feng-Peng Wang. "New Access to 7,17-seco C19-Diterpenoid Alkaloids via Vacuum Pyrolysis of N-Deethyl-8-acetyl Derivatives." Natural Product Communications 8, no. 12 (2013): 1934578X1300801. http://dx.doi.org/10.1177/1934578x1300801210.

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31

Boullanger, Paul, Joseph Banoub, and Gérard Descotes. "N-Allyloxycarbonyl derivatives of D-glucosamine as promotors of 1,2-trans-glucosylation in Koenigs–Knorr reactions and in Lewis acid catalyzed condensations." Canadian Journal of Chemistry 65, no. 6 (1987): 1343–48. http://dx.doi.org/10.1139/v87-225.

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The use of suitably blocked D-glucosamine derivatives possessing the N-allyloxycarbonyl protective group of the amino function represents potential new routes to 1,2-trans-glucosylations. Both 3,4,6-tri-O-acetyl-2-N-allyloxycarbonyl-2-amino-2-deoxy-α-D-glucopyranosyl bromide (2) and 1,3,4,6-tetra-O-acetyl-2-N-allyloxycarbonyl-2-amino-2-deoxy-β-D-glucopyranose (3) could be used in Koenigs–Knorr reactions or Lewis acid catalyzed condensations, respectively. Glucosides of simple alcohols and disaccharides were synthesized in good to excellent yields. The N-allyloxycarbonyl protective group was, m

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32

Santana, A. G., G. Vadlamani, B. L. Mark, and S. G. Withers. "N-Acetyl glycals are tight-binding and environmentally insensitive inhibitors of hexosaminidases." Chemical Communications 52, no. 51 (2016): 7943–46. http://dx.doi.org/10.1039/c6cc02520j.

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Mono-, di- and trisaccharide derivatives of 1,2-unsaturated N-acetyl-d-glucal have been synthesized and shown to function as tight-binding inhibitors/slow substrates of representative hexosaminidases.

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33

Ghali, Thaer S., and Jumbad H. Tomma. "Synthesis and Study the Mesomorphic Behaviour of New N- acetyl and Their Diazetine: Mono and Twin." Ibn AL- Haitham Journal For Pure and Applied Science 31, no. 1 (2018): 88. http://dx.doi.org/10.30526/31.1.1856.

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Synthesis ,characterization of new mono and twin compounds containing heterocyclic four member ring as, 1,3- diazetine by four steps. The first step; includes preparation of 2- amino thiazole derivatives [I]a-c via ring closure reaction between acetophenone derivatives with thiourea in I2, while the second step includes condensation reaction between 2-amino thaizole derivatives[I]a-c and p-methoxy benzaldehyde to produce Schiff bases[II]a-c. The third step includes neculophilic attach from imine group toacetyl chloride to give N- acetyl cross bonding[III]a-c.Finally ; the fourth step is comple

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34

R., S. Dhivare, and S. Rajput S. "Synthesis, Characterization and Antimicrobial Evolution of Six Membered Cyclic Imides." International Journal of Chemistry and Pharmaceutical Sciences 3, no. 8 (2015): 1877–80. https://doi.org/10.5281/zenodo.3909339.

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A B S T R A C T The six-membered cyclic imide derivatives were synthesized by reacting glutaric anhydride with different substituted aromatic amines to get 4-(N-phenyl carbamoyl) butanoic acid. These intermediates underwent ring closer with acetyl chloride furnished six-membered cyclic imides derivatives. All these derivatives were screened for antimicrobial activities.

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H., Raveendranatha Reddy, Aggile Kadirappa, and Subashini R. "Synthesis of N-acetyl pyrazole and its analogues." Journal of Indian Chemical Society Vol. 92, Jun 2015 (2015): 933–36. https://doi.org/10.5281/zenodo.5673967.

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Organic Chemistry Division, School of Advanced Sciences, VIT University, Vellore-632 014, Tamilnadu, India <em>E-mail</em> : subashinir@vit.ac.in Chalcones have been very attractive starting compounds in organic chemistry, as they are easy to synthesize with large variability. Chalcones are synthesized by Claisen-Schmidt condensation, which involves cross aldol condensation of suitable aldehydes and ketones by base catalysed or acid catalysed reactions followed by dehydration. So our aim is to construct novel <em>N</em>-acetyl pyrazole derivatives 4,5-dihydropyrazole were synthesized starting

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Cefalì, Federica, Anna Iuliano, Federica Balzano, Gloria Uccello Barretta, Valerio Zullo, and Carlo Baldassari. "Isohexide-Based Tunable Chiral Platforms as Amide- and Thiourea-Chiral Solvating Agents for the NMR Enantiodiscrimination of Derivatized Amino Acids." Molecules 29, no. 6 (2024): 1307. http://dx.doi.org/10.3390/molecules29061307.

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New arylamide- and arylthiourea-based chiral solvating agents (CSAs) were synthesized starting from commercially available isomannide and isosorbide. The two natural isohexides were transformed into the three amino derivatives, having isomannide, isosorbide, and isoidide stereochemistry, then the amino groups were derivatized with 3,5-dimethoxybenzoyl chloride or 3,5-bis(trifluoromethyl)phenyl isothiocyanate to obtain the CSAs. Bis-thiourea derivative containing the 3,5-bis(trifluoromethyl)phenyl moiety with exo–exo stereochemistry was remarkably efficient in the differentiation of NMR signals

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Hanaya, Tadashi, Kiyoshi Torigoe, Kazuyuki Soranaka, Horoshi Yamamoto, Yao Qizhengt, and Wolfgang Pfleiderer. "Pteridines CV." Pteridines 6, no. 1 (1995): 1–7. http://dx.doi.org/10.1515/pteridines.1995.6.1.1.

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Summary Treatment of L-biopterin (I) with N,N-dimethyformamide dimethyl- (or diethyl)acetal and then with acetic anhydride in pyridine gave 1',2'-di-O-acetyl-N'-(N,N-dimethylaminomethylene)-L-biopterin (4), which was converted by the Mitsunobu reaction into 3-methyl (5) and 3-p-nitrophenetyl derivatives (7). The protective groups on the side chain diols and N2 of these compounds were selectively cleaved to furnish products 6, 8-10, among which 9 is naturally occurring 3-methyl-L-biopterin and 8 is N',N(3)-protected biopterin, a versatile intermediate for various reactions on the side-chain dio

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He, Yuan, Jing Zheng, and Lin Dong. "Rh(iii)-Catalyzed cascade annulation to produce an N-acetyl chain of spiropyrroloisoquinoline derivatives." Organic & Biomolecular Chemistry 20, no. 11 (2022): 2293–99. http://dx.doi.org/10.1039/d2ob00137c.

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A new rhodium(iii)-catalyzed multistep cascade spirocyclization approach was developed to synthesize a novel N-acetyl chain of spiropyrroloisoquinoline derivatives using oxadiazoles as the directing group.

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Han, Bingchen, Xin Hu, Xinfeng Zhang, et al. "The fluorescence mechanism of carbon dots based on the separation and identification of small molecular fluorophores." RSC Advances 12, no. 19 (2022): 11640–48. http://dx.doi.org/10.1039/d2ra00431c.

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Lafont, Dominique, Paul Boullanger, Joseph Banoub та Gerard Descotes. "Synthesis of glycan fragments of glycoproteins using peracetylated N-allyloxycarbonyl-β-D-glucosamine and 1,6-anhydro-β-D-mannopyranose derivatives". Canadian Journal of Chemistry 68, № 6 (1990): 828–35. http://dx.doi.org/10.1139/v90-131.

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The disaccharides β-D-GlcNAOC-(1 → 2)-D-Man, β-D-GlcNAOC-(1→ 4)-D-Man, the trisaccharide β-D-GlcNAOC-(1 → 2)-[β-D-GlcNAOC-(1→ 4)]-D-Man, and the tetrasaccharide β-D-GlcNAOC-(1 → 2)-[β-D-GlcNAOC-(1→ 3)]-[β-D-GlcNAOC-(1 → 4)]-D-Man have been synthesized in their peracetylated form, using the Lewis acid catalyzed condensations of 1,3,4,6-tetra-O-acetyl-2-N-allyloxycarbonylamino-2-deoxy-β-D-glucopyranose 1 with properly substituted 1,6-anhydro-β-D-mannopyranose derivatives. The anhydro glycosylation products obtained were then easily transformed into the 4C1 peracetylated derivatives by acetolysis

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Wang, Nan, Jingyang Li, Hui Song, et al. "Synthesis and anti-osteoporosis activity of novel Teriparatide glycosylation derivatives." RSC Advances 10, no. 43 (2020): 25730–35. http://dx.doi.org/10.1039/d0ra05136e.

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Ku, Yi-Yin, David Riley, Hemant Patel, ChengXi Yang, and Jih-Hua Liu. "An efficient synthesis of des-N-methyl-N-acetyl erythromycin derivatives via the N-oxide." Bioorganic & Medicinal Chemistry Letters 7, no. 9 (1997): 1203–6. http://dx.doi.org/10.1016/s0960-894x(97)00195-9.

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43

Velezheva, V. S., S. Yu Ryabova, A. I. Mel'man, and V. I. Pol'shakov. "1-Acetyl-2-chloro-3-iminoindoline hydrochloride and its N-acetyl derivatives in nucleophilic substitution reactions." Chemistry of Heterocyclic Compounds 28, no. 1 (1992): 43–47. http://dx.doi.org/10.1007/bf00529477.

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Olszewska, E., B. Tarasiuk, and S. Pikus. "New powder diffraction data of some N-derivatives of 4-chloro-3,5-dimethylphenoxyacetamide-potential pesticides." Powder Diffraction 26, no. 4 (2011): 337–45. http://dx.doi.org/10.1154/1.3652921.

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N-derivatives of 4-chloro-3,5-dimethylphenoxyacetamide—2-(4-chloro-3,5-dimethylphenoxy)-N-(4-fluorophenyl)acetamide, 2-(4-chloro-3,5-dimethylphenoxy)-N-(3-chloro-4-fluorophenyl) acetamide, 2-(4-chloro-3,5-dimethylphenoxy)-N-[4-chloro-3-(trifluoromethyl)phenyl] acetamide, 2-(4-chloro-3,5-dimethylphenoxy)-N-[3-chloro-4-methylphenyl]acetamide, 2-(4-chloro-3,5-dimethylphenoxy)-N-(2,4,6-tribromophenyl) acetamide, 2-(4-chloro-3,5-dimethylphenoxy)-N-pyridin-2-ylacetamide, 1-[(4-chloro-3,5-dimethylphenoxy)acetyl]-4-methylpiperazine, and 1-benzyl-4-[(4-chloro-3,5-dimethylphenoxy)acetyl]piperazine—have

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45

Panyatip, Panyada, Nadtanet Nunthaboot, and Ploenthip Puthongking. "In Silico ADME, Metabolism Prediction and Hydrolysis Study of Melatonin Derivatives." International Journal of Tryptophan Research 13 (January 2020): 117864692097824. http://dx.doi.org/10.1177/1178646920978245.

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Melatonin (MLT) is a well-known pineal hormone possessed with remarkable biological activities. However, its low oral bioavailability and high first-pass metabolism rate are important pharmacokinetics problems. Therefore, 5 MLT derivatives (1-5) were designed and synthesised in our group to solve these problems. In this work, in silico analysis of all synthetic derivatives for pharmacokinetic and drug-likeness parameters were predicted by SwissADME software. The results revealed that all derivatives (1-5) met the requirements for ideal oral bioavailability and CNS drugs. The molecular docking

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Alexander, J. M., J. L. Clark, T. J. Brett, and J. J. Stezowski. "Chiral discrimination in cyclodextrin complexes of amino acid derivatives: -cyclodextrin/ N-acetyl-L-phenylalanine and N-acetyl- D-phenylalanine complexes." Proceedings of the National Academy of Sciences 99, no. 8 (2002): 5115–20. http://dx.doi.org/10.1073/pnas.072647599.

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47

Shyamsivappan, Selvaraj, Raju Vivek, Thangaraj Suresh, et al. "New N-(3′-acetyl-8-nitro-2,3-dihydro-1H,3′H-spiro[quinoline-4,2′-[1,3,4]thiadiazol]-5′-yl) acetamides induced cell death in MCF-7 cells via G2/M phase cell cycle arrest." New Journal of Chemistry 46, no. 6 (2022): 2817–28. http://dx.doi.org/10.1039/d1nj02550c.

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48

Rádl, Stanislav, Petr Hezký, Petr Konvička, and Ivan Krejčí. "Synthesis and Analgesic Activity of Some Substituted 1-Benzofurans and 1-Benzothiophenes." Collection of Czechoslovak Chemical Communications 65, no. 7 (2000): 1093–108. http://dx.doi.org/10.1135/cccc20001093.

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2-Benzoyl- and 2-(pyridylcarbonyl)-1-benzofuran-3-amines were prepared from 2-hydroxybenzonitrile and corresponding bromoethanone derivatives. 2-Benzoyl- and 2-(pyridylcarbonyl)-1-benzothiophene-3-amines were prepared analogously from 2-sulfanylbenzonitrile. 2-Benzoyl-1-benzofuran-3-amine treated with acetic anhydride or ethyl chloroformate provided the corresponding N-acetyl or N-ethoxycarbonyl derivatives. These N-activated compounds were alkylated with ethyl bromoacetate to provide ethyl N-acetyl-N-(2-benzoyl-1-benzofuran-3-yl)glycinate and ethyl N-(2-benzoyl-1-benzofuran-3-yl)-N-ethoxycarb

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49

Indusegaram, Sutharsiny, Andrew G. Katsifis, Damon D. Ridley, and Simone C. Vonwiller. "Nitrogen versus Oxygen Group Protection in Hydroxypropylbenzimidazoles." Australian Journal of Chemistry 56, no. 8 (2003): 819. http://dx.doi.org/10.1071/ch03012.

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In order to convert 1′H-benzimidazol-2′-ylpropanols into aryl ethers using Mitsunobu coupling, it was necessary to protect the benzimidazole nitrogen in the starting alcohols. Selective protection at nitrogen was achieved through N-benzyl derivatives, but attempts to protect the nitrogen directly through tert-butoxycarbonyl, acetyl, trityl, or tetrahydropyranyl derivatives were complicated either by selective reactions at oxygen or by the formation of bis-protected compounds. Transformations of some oxygen-protected derivatives are discussed, and in particular the conversion of the acetates of

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50

Xiao, An, Xiu-Jing Zheng, Chengcheng Song, Yue Gui, Chang-Xin Huo, and Xin-Shan Ye. "Correction: Synthesis and immunological evaluation of MUC1 glycopeptide conjugates bearing N-acetyl modified STn derivatives as anticancer vaccines." Organic & Biomolecular Chemistry 15, no. 9 (2017): 2120–21. http://dx.doi.org/10.1039/c7ob90028g.

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Correction for ‘Synthesis and immunological evaluation of MUC1 glycopeptide conjugates bearing N-acetyl modified STn derivatives as anticancer vaccines’ by An Xiao et al., Org. Biomol. Chem., 2016, 14, 7226–7237.

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