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Journal articles on the topic 'Isochromen-1-one'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Hlotov, Serhii, Olga Shablykina, and Volodymyr Khilya. "4-(1-Oxo-1H-isochromen-3-yl)benzenesulfonamides and their effect on cancer cell growth." Ukrainica Bioorganica Acta 16, no. 2 (2021): 30–33. http://dx.doi.org/10.15407/bioorganica2021.02.030.

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Sulfonamide derivatives of 3-phenyl-1H-isochromen-1-one were synthesized by reaction of 4-(1-oxo-1H-isochromen-3-yl)benzenesulfonyl chloride with amines. The specific parameters of chlorosulfonation of 3-phenyl-1H-isochromen-1-one have been identified; the procedure for synthesis of 4-(1-oxo-1H-isochromen-3-yl)benzenesulfonyl chloride and its by-product (disulfochloride) was optimized. The evaluation of anticancer activity of obtained sulfonamides showed no appreciable cytotoxicity

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2

Hathwar, Venkatesha R., P. Manivel, F. Nawaz Khan, and T. N. Guru Row. "3-Butyl-1H-isochromen-1-one." Acta Crystallographica Section E Structure Reports Online 63, no. 9 (2007): o3707. http://dx.doi.org/10.1107/s1600536807037671.

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3

Shablykin, Oleh V., Olga V. Shablykina, and Ilona Yu Tarasiuk. "Preliminary evaluation of the effect of partially hydrogenated 3-acetylisocoumarin derivatives on the cancer cells growth." Ukrainica Bioorganica Acta 19, no. 2 (2024): 33–36. https://doi.org/10.15407/bioorganica2024.02.033.

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In different conditions, from 3-acetyl-1H-isochromen-1-one three partial reduction products were obtained, namely 3-(1-hydroxyethyl)-1H-isochromen-1-one, 3-(1-hydroxyethyl)isochroman-1-one, and 3-ethylisochroman-1-one. The influence of two products with an alcohol fragment, as well as 4-hydroxy-1,2,3,4-tetrahydro-6H-benzo[c]chromen-6-one, on the growth of cancer cells was investigated through One Doses Full NCI 60 Cell Panel Assay. The only one significant effect was found: 3-(1-hydroxyethyl)-1H-isochromen-1-one practically stops the growth of CCRF-CEM cell lines (Leukemia)

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4

Qadeer, Ghulam, Nasim Hasan Rama, Muhammad Azaad Malik, Javeed Akhtar, and Madeleine Helliwell. "3-(3,4,5-Trimethoxyphenyl)-1H-isochromen-1-one." Acta Crystallographica Section E Structure Reports Online 63, no. 8 (2007): o3447. http://dx.doi.org/10.1107/s1600536807032783.

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5

Ali, Farukh Iftakhar, Tariq Mahmood Babar, Nasim Hasan Rama, and Peter G. Jones. "3-(3-Bromobenzyl)-1H-isochromen-1-one." Acta Crystallographica Section E Structure Reports Online 65, no. 10 (2009): o2511. http://dx.doi.org/10.1107/s1600536809037246.

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6

Abid, Obaid-Ur-Rehman, Ghulam Qadeer, Nasim Hasan Rama, Ales Ruzicka, and Zdenka Padelkova. "3-(3-Chlorobenzyl)-1H-isochromen-1-one." Acta Crystallographica Section E Structure Reports Online 64, no. 10 (2008): o2018. http://dx.doi.org/10.1107/s1600536808030274.

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7

Babar, Tariq Mahmood, Ghulam Qadeer, Obaid-ur-Rahman Abid, Nasim Hassan Rama, and Ales Ruzicka. "3-(3-Fluorobenzyl)-1H-isochromen-1-one." Acta Crystallographica Section E Structure Reports Online 64, no. 12 (2008): o2266. http://dx.doi.org/10.1107/s1600536808035575.

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8

Maiyalagan, T., Venkatesha R. Hathwar, P. Manivel, N. Burcu Arslan, and F. Nawaz Khan. "3-(4-Methoxyphenyl)-1H-isochromen-1-one." Acta Crystallographica Section E Structure Reports Online 65, no. 1 (2008): o128. http://dx.doi.org/10.1107/s1600536808042074.

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9

Shablykina, O. V., O. V. Shablykin, V. V. Ishchenko, A. V. Voronaya, and V. P. Khilya. "Synthesis of 3-hetaryl-1H-isochromen-1-ones based on 3-(2-bromoacetyl)-1H-isochromen-1-one." Chemistry of Heterocyclic Compounds 48, no. 11 (2013): 1621–27. http://dx.doi.org/10.1007/s10593-013-1183-7.

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10

Shablykin, Oleh, Daniil Merzhyievsky, and Olga Shablykina. "The interaction of homophthalic anhydride with (triphenylphosphoranylidene)acetates." French-Ukrainian Journal of Chemistry 5, no. 2 (2017): 62–67. http://dx.doi.org/10.17721/fujcv5i2p62-67.

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In the study of the interaction of homophthalic anhydride and methyl (triphenylphosphoranylidene)acetate, along with (1-oxo-1H-isochromen-3‑yl)acetate obtaining, two minor products – (1,3-dioxo-1,2,3,4-tetrahydronaphthalene-2-yl)acetate and 2‑((1‑oxo-1H-isochromen-3-yl)methyl)benzoic acid – had been isolated. The action of tert‑butyl (triphenylphosphoranylidene)acetate on homophthalic anhydride didn’t lead to Wittig reaction; the encumbered ylide demonstrated only its basicity, and products of homophthalic anhydride self-condensation – 2‑((1‑oxo-1H-isochromen-3-yl)methyl)-benzoic acid a

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11

Vicentes, Daniel E., Ricaurte Rodríguez, Justo Cobo, and Christopher Glidewell. "Hydrogen-bonded dimers in 3-amino-4-anilino-1H-isochromen-1-one and a hydrogen-bonded sheet in 3-amino-4-[methyl(phenyl)amino]-1H-isochromen-1-one." Acta Crystallographica Section C Crystal Structure Communications 69, no. 7 (2013): 770–73. http://dx.doi.org/10.1107/s0108270113014777.

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The molecules of 3-amino-4-anilino-1H-isochromen-1-one, C15H12N2O2, (I), and 3-amino-4-[methyl(phenyl)amino]-1H-isochromen-1-one, C16H14N2O2, (II), adopt very similar conformations, with the substituted amino group PhNR, whereR= H in (I) andR= Me in (II), almost orthogonal to the adjacent heterocyclic ring. The molecules of (I) are linked into cyclic centrosymmetric dimers by pairs of N—H...O hydrogen bonds, while those of (II) are linked into complex sheets by a combination of one three-centre N—H...(O)2hydrogen bond, one two-centre C—H...O hydrogen bond and two C—H...π(arene) hydrogen bonds.

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12

Khalid, Muhammad, Gul Shahzada Khan, Ghulam Qadeer, Nasim Hasan Rama, and Wai-Yeung Wong. "3-(2-Chloro-4-fluorophenyl)-1H-isochromen-1-one." Acta Crystallographica Section E Structure Reports Online 62, no. 10 (2006): o4539—o4540. http://dx.doi.org/10.1107/s1600536806035999.

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13

Khalid, Muhammad, Ghulam Qadeer, Gul Shahzada Khan, Nasim Hasan Rama, and Wai-Yeung Wong. "3-(2-Chloro-6-fluorophenyl)-1H-isochromen-1-one." Acta Crystallographica Section E Structure Reports Online 62, no. 11 (2006): o5244—o5245. http://dx.doi.org/10.1107/s1600536806043777.

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14

Napoleon, A. A., Vijay Sharma, and Kadirappa Aggile. "Synthesis of Novel Isochromen-1-one analogues of Etodolac." IOP Conference Series: Materials Science and Engineering 263 (November 2017): 022021. http://dx.doi.org/10.1088/1757-899x/263/2/022021.

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15

Shablykina, O. V., O. V. Shablykin, V. V. Ishchenko, A. V. Voronaya, and V. P. Khilya. "ChemInform Abstract: Synthesis of 3-Hetaryl-1H-isochromen-1-ones Based on 3-(2-Bromoacetyl)-1H-isochromen-1-one (II)." ChemInform 44, no. 35 (2013): no. http://dx.doi.org/10.1002/chin.201335137.

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16

Tiouabi, Mustapha, Raphaël Tabacchi, and Helen Stoeckli-Evans. "Crystal structures and Hirshfeld surface analyses of 6,8-dimethoxy-3-methyl-1H-isochromen-1-one and 5-bromo-6,8-dimethoxy-3-methyl-1H-isochromen-1-one chloroform monosolvate." Acta Crystallographica Section E Crystallographic Communications 76, no. 7 (2020): 1107–12. http://dx.doi.org/10.1107/s2056989020007975.

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In the molecule of 6,8-dimethoxy-3-methyl-1H-isochromen-1-one, C12H12O4, (I), the two methoxy groups are directed anti with respect to each other. In the molecule of the brominated derivative, 5-bromo-6,8-dimethoxy-3-methyl-1H-isochromen-1-one, that crystallized as a chloroform monosolvate, C12H11BrO4·CHCl3, (II·CHCl3 ), the methoxy groups are directed syn to each other. In the crystal of I, molecules are linked by bifurcated C—H...O hydrogen bonds, forming chains along the c-axis direction. The chains are linked by C—H...π interactions, forming a supramolecular framework. In the crystal of II

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17

Meng, Ling-Hong, Hui-Qin Chen, Imke Form, Belma Konuklugil, Peter Proksch, and Bin-Gui Wang. "New Chromone, Isocoumarin, and Indole Alkaloid Derivatives from three Sponge-derived Fungal Strains." Natural Product Communications 11, no. 9 (2016): 1934578X1601100. http://dx.doi.org/10.1177/1934578x1601100927.

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Two new chromone derivatives, 2-hydroxymethyl-3-methyl-7-methoxychromone (1) and 2-hydroxymethyl-3- tert-butyl-7-methoxychromone (2), together with a related known compound, 2,3-dimethyl-7-methoxychromone (3), were isolated from Rhinocladiella sp. (IO2), a fungus obtained from the sponge Ircinia oros. Furthermore, a new isocoumarin derivative, 3-(3-chloro-2-hydroxypropyl)-8-hydroxy-6-methoxy-isochromen-1-one (4) and a known analogue 3-[( R)-3,3-dichloro-2-hydroxypropyl]-8-hydroxy-6-methoxy-1 H-isochromen-1-one (dichlorodiaportin, 5), were identified from sponge-derived fungal strain Clonostach

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18

Syed Abuthahir, S., M. NizamMohideen, S. Mayakrishnan, N. Uma Maheswari, and V. Viswanathan. "Crystal structures of two new isocoumarin derivatives: 8-amino-6-methyl-3,4-diphenyl-1H-isochromen-1-one and 8-amino-3,4-diethyl-6-methyl-1H-isochromen-1-one." Acta Crystallographica Section E Crystallographic Communications 75, no. 8 (2019): 1117–22. http://dx.doi.org/10.1107/s2056989019009435.

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The title compounds, 8-amino-6-methyl-3,4-diphenyl-1H-isochromen-1-one, C22H17NO2, (I), and 8-amino-3,4-diethyl-6-methyl-1H-isochromen-1-one, C14H17NO2, (II), are new isocoumarin derivatives in which the isochromene ring systems are planar. Compound II crystallizes with two independent molecules (A and B) in the asymmetric unit. In I, the two phenyl rings are inclined to each other by 56.41 (7)° and to the mean plane of the 1H-isochromene ring system by 67.64 (6) and 44.92 (6)°. In both compounds, there is an intramolecular N—H...O hydrogen bond present forming an S(6) ring motif. In the cryst

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19

Loginov, Dmitry A., Alexander P. Molotkov, and Nikolay E. Shepel'. "Synthesis and fluorescence of 3,4,6,7,8,9-hexaphenyl-1H-benzo[g]isochromen-1-one." Journal of Organometallic Chemistry 867 (July 2018): 67–70. http://dx.doi.org/10.1016/j.jorganchem.2017.12.021.

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20

Khilya, V., O. Shablykina, M. Tsapko, et al. "Eu(fod)3 EFFECT ON 1H NMR SPECTRA OF 3-ARYLISOCOUMARINS AND 3-ARYL-3,4-DIHYDROISOCOUMARINS WITH ALKOXY, ESTER AND AMIDE GROUPS." Bulletin of Taras Shevchenko National University of Kyiv. Chemistry, no. 2(54) (2017): 74–80. http://dx.doi.org/10.17721/1728-2209.2017.2(54).15.

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The effect of the lanthanide shift reagent (LSR) – tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octa-dionate) of Europium – Eu(fod)3 – on 1H NMR spectra of functionalized 3-arylisocoumarins and 3-aryl-3,4-dihydroisocoumarins was investigated. Based on previous studies of LSR interactions with benzopyrones, it was expected that the main coordination centre for the Eu3+ would be the exocyclic Oxygen atom of the heterocycle, but the possibility of competition from aromatic substituent functional groups was also considered. By measuring lanthanide-induced shifts (LIS) of the proton signals of t

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21

Tian, Kaixin, Yanhong Wang, Miaomiao Xun, Changchun Yuan, and Kai Fu. "Crystal structure of 5,7,7-trimethyl-4,6,7,8-tetrahydrocyclopenta[g]isochromen-1(3H)-one, C15H18O2." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 2 (2020): 339–40. http://dx.doi.org/10.1515/ncrs-2020-0598.

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22

Shablykina, O., V. Moskvina, V. Savchenko, and V. Khilya. "USING OF 3-ARYLISOCOUMARINS IN 3-ARYLISOQUINOLONS SYNTHESIS." Bulletin of Taras Shevchenko National University of Kyiv. Chemistry, no. 2(54) (2017): 18–30. http://dx.doi.org/10.17721/1728-2209.2017.2(54).2.

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The review systematizes and analyzes the literature data (100 sources) regarding the recyclization of 3-arylisocoumarins (3-aryl-1H-isochromen-1-ones) under the action of primary N-nucleophiles that leads to the formation of 3-arylisoquinolones (3-arylisoquinolin-1(2H)-ones). This reaction may be carried out with a wide range of primary aminogroup-containing compounds: ammonia, primary aliphatic, aromatic, and heteroaromatic amines, hydrazine, and hydroxylamine. This transformation is not hindered by the presence of active functional groups (hydroxyl, acetal, carboxyl, ester, nitrile groups, o

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23

GUILLON, Jean, Luisa RONGA, Mathieu MARCHIVIE, and Vincent LISOWSKI. "Crystal Structure of 7-Amino-4-iodo-3-propyl-1H-isochromen-1-one." X-ray Structure Analysis Online 32 (2016): 45–46. http://dx.doi.org/10.2116/xraystruct.32.45.

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24

Huang, Hua-Rong, Yan-Xiong Fang, Zhi-Yun Du, Kun Zhang, and Yong-Cheng Lin. "3-[(R)-3,3-Dichloro-2-hydroxypropyl]-8-hydroxy-6-methoxy-1H-isochromen-1-one." Acta Crystallographica Section E Structure Reports Online 64, no. 9 (2008): o1801. http://dx.doi.org/10.1107/s1600536808026391.

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25

Napoleon, Ayyakannu Arumugam, and Vijay Sharma. "Molecular Docking and in vitro-Anti-Inflammatory evaluation of Novel Isochromen-1-one Analogues Frometodolac." Research Journal of Pharmacy and Technology 10, no. 9 (2017): 3011. http://dx.doi.org/10.5958/0974-360x.2017.00533.9.

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26

Saeed, Aamer. "Synthesis of 8-hydroxy-6-methoxy-3-pentyl-1H-isochromen-1-one from Tessmannia densiflora." European Journal of Chemistry 2, no. 1 (2011): 117–19. http://dx.doi.org/10.5155/eurjchem.2.1.117-119.201.

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27

Napoleon, Ayyakannu Arumugam, and Vijay Sharma. "Molecular Docking and In-vitro anti-inflammatory evaluation of Novel Isochromen-1-one analogues from Etodolac." Research Journal of Pharmacy and Technology 10, no. 8 (2017): 2446. http://dx.doi.org/10.5958/0974-360x.2017.00432.2.

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28

Rafique, Hummera, Aamer Saeed, Ehsan Ullah Mughal, et al. "Total Synthesis and Antibacterial Screening of (±)-6,8-Dihydroxy-3- undecyl-3,4-dihydroisochromen-1-one: A Structural Analogue of Metabolites from Ononis natrix." Letters in Drug Design & Discovery 16, no. 3 (2019): 245–48. http://dx.doi.org/10.2174/1570180815666180502114402.

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Background: (±)-6,8-Dihydroxy-3-undecyl-3,4-dihydroisochromen-1-one is one of the structural analog of several substituted undecylisocoumarins isolated from Ononis natrix (Fabaceae), has been successfully synthesized by direct condensation of homopthalic acid (1) with undecanoyl chloride yields isochromen-1-one (2). Methods: Alkaline hydrolysis of (2) gave the corresponding keto-acid (3), which is then reduced to hydroxy acid (4) then its cyclodehydration was carried out with acetic anhydride to afford 3,4- dihydroisochromen-1-one (5). Followed by demethylation step, the synthesis of target 6,

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29

Gangadhara, Angajala, Arumugam Napoleon Ayyakannu, and Nawaz Khan F. "Synthesis, characterization and pharmacological studies of novel isocoumarins derived from two anti-inflammatory drugs – Diclofenac and Aceclofenac." Journal of Indian Chemical Society Vol. 92, Apr 2015 (2015): 603–7. https://doi.org/10.5281/zenodo.5597067.

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Pharmaceutical Chemistry Division, School of Advanced Sciences, VIT University, Vellore-632 014, Tamilnadu, India <em>E-mail</em> : napoleonaa@gmail.com; aanapoleon@vit.ac.in Organic and Medicinal Chemistry Research Laboratory, Organic Chemistry Division, School of Advanced Sciences, VIT University, Vellore-632 014, Tamilnadu, India Two novel isocoumarins 3-{2-[(2,6-dichlorophenyl)amino]benzyl}-1H-isochromen-1-one and (1-oxo-1Hisochromen-3-yl)methyl 2-(3-((2,6-dichlorophenyl)amino)phenyl)acetate were synthesized using two anti-inflammatory drugs Diclofenac and Aceclofenac by conventional heati

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30

Krishna, S. Shiva Rama, and R. Sreenivasulu. "Methodology study and a practical, cost efficient synthesis of a 3-(2-Methyl-1-Oxo-Indan-2-Ylmethyl)-Isochromen-1-One." Asian Journal of Research in Chemistry 11, no. 3 (2018): 585. http://dx.doi.org/10.5958/0974-4150.2018.00104.9.

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31

Sun, Mei, Chong-Yang Zeng, Lu-Lu Bu, et al. "Novel Metal-Free Synthesis of 3-Substituted Isocoumarins and Evaluation of Their Fluorescence Properties for Potential Applications." Molecules 29, no. 11 (2024): 2449. http://dx.doi.org/10.3390/molecules29112449.

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A novel metal-free synthesis of 3-substituted isocoumarins through a sequential O-acylation/Wittig reaction has been established. The readily accessible (2-carboxybenzyl)-triphenylphosphonium bromide and diverse chlorides produced various 1H-isochromen-1-one in the presence of triethylamine, employing sequential O-acylation and an intramolecular Wittig reaction of acid anhydride. Reactions using these facile conditions have exhibited high functional group tolerance and excellent yields (up to 90%). Moreover, the fluorescence properties of isocoumarin derivatives were evaluated at the theoretic

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32

Zonov, Ya V., V. M. Karpov, and V. E. Platonov. "Isomerization of perfluoro-3,3-diethylindan-1-one into perfluoro-1,3-dimethyl-4-ethyl-1 H-isochromen under the action of antimony pentafluoride." Russian Journal of Organic Chemistry 47, no. 2 (2011): 207–13. http://dx.doi.org/10.1134/s1070428011020096.

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33

Vicentes, Daniel E., Andrea L. Romero, Ricuarte Rodríguez, Justo Cobo, and Christopher Glidewell. "Conversion of 3-amino-4-arylamino-1H-isochromen-1-ones to 1-arylisochromeno[3,4-d][1,2,3]triazol-5(1H)-ones: synthesis, spectroscopic characterization and the structures of four products and one ring-opened derivative." Acta Crystallographica Section C Structural Chemistry 76, no. 5 (2020): 446–53. http://dx.doi.org/10.1107/s2053229620003757.

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An efficient synthesis of 1-arylisochromeno[3,4-d][1,2,3]triazol-5(1H)-ones, involving the diazotization of 3-amino-4-arylamino-1H-isochromen-1-ones in weakly acidic solution, has been developed and the spectroscopic characterization and crystal structures of four examples are reported. The molecules of 1-phenylisochromeno[3,4-d][1,2,3]triazol-5(1H)-one, C15H9N3O2, (I), are linked into sheets by a combination of C—H...N and C—H...O hydrogen bonds, while the structures of 1-(2-methylphenyl)isochromeno[3,4-d][1,2,3]triazol-5(1H)-one, C16H11N3O2, (II), and 1-(3-chlorophenyl)isochromeno[3,4-d][1,2

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34

Kim, Min-Ji, Sang-Ho Yoo, Yang Kim, and Jae-Hee Hong. "Relative sweetness and sweetness quality of phyllodulcin [(3R)-8-Hydroxy-3-(3-hydroxy-4-methoxyphenyl)-3,4-dihydro-1H-isochromen-1-one]." Food Science and Biotechnology 25, no. 4 (2016): 1065–72. http://dx.doi.org/10.1007/s10068-016-0172-x.

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35

Klaram, Rotchana, Tida Dethoup, Fátima P. Machado, et al. "Pentaketides and 5-p-Hydroxyphenyl-2-pyridone Derivative from the Culture Extract of a Marine Sponge-Associated Fungus Hamigera avellanea KUFA0732." Marine Drugs 21, no. 6 (2023): 344. http://dx.doi.org/10.3390/md21060344.

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Five undescribed pentaketide derivatives, (R)-6,8-dihydroxy-4,5-dimethyl-3-methylidene-3,4-dihydro-1H-2-benzopyran-1-one (1), [(3S,4R)-3,8-dihydroxy-6-methoxy-4,5-dimethyl-1-oxo-3,4-dihydro-1H-isochromen-3-yl]methyl acetate (2), (R)-5, 7-dimethoxy-3-((S)-(1-hydroxyethyl)-3,4-dimethylisobenzofuran-1(3H)-one (4b), (S)-7-hydroxy-3-((S)-1-hydroxyethyl)-5-methoxy-3,4-dimethylisobenzofuran 1(3H)-one (5), and a p-hydroxyphenyl-2-pyridone derivative, avellaneanone (6), were isolated together with the previously reported (R)-3-acetyl-7-hydroxy-5-methoxy-3,4-dimethylisobenzofuran-1(3H)-one (3), (R)-7-hy

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36

Araújo, Flávio Henrique Souza de, Débora Rojas de Figueiredo, Sarah Alves Auharek, et al. "In vivo chemotherapeutic insight of a novel isocoumarin (3-hexyl-5,7-dimethoxy-isochromen-1-one): Genotoxicity, cell death induction, leukometry and phagocytic evaluation." Genetics and Molecular Biology 40, no. 3 (2017): 665–75. http://dx.doi.org/10.1590/1678-4685-gmb-2016-0316.

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37

Zonov, Ya V., V. M. Karpov, and V. E. Platonov. "ChemInform Abstract: Isomerization of Perfluoro-3,3-diethylindan-1-one into Perfluoro-1,3-dimethyl-4-ethyl-1H-isochromen under the Action of Antimony Pentafluoride." ChemInform 42, no. 33 (2011): no. http://dx.doi.org/10.1002/chin.201133129.

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38

van Otterlo, Willem A. L., Joseph P. Michael, and Charles B. de Koning. "Alternatives to N,N‐Diethyl‐2,4‐dimethoxybenzamide as a Precursor for the Synthesis of 6,8‐Dimethoxy‐3‐methyl‐3,4‐dihydro‐1H‐isochromen‐1‐one." Synthetic Communications 37, no. 20 (2007): 3611–21. http://dx.doi.org/10.1080/00397910701557655.

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39

Makabe, Hidefumi, Masaki Asai, and Yasunao Hattori. "Synthesis of Isocoumarin Compounds, 8-Hydroxy-6-methoxy-3-Pentyl-1H-Isochromen-1-one and Fusariumin Analog Using Palladium-Catalyzed Carbonylation Trapping with O-Enolate." HETEROCYCLES 94, no. 8 (2017): 1542. http://dx.doi.org/10.3987/com-17-13746.

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Luo, Jiaer, Rebecca Mobley, Sian Woodfine, et al. "Biotransformation of artemisinin to a novel derivative via ring rearrangement by Aspergillus niger." Applied Microbiology and Biotechnology 106, no. 7 (2022): 2433–44. http://dx.doi.org/10.1007/s00253-022-11888-0.

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Abstract Artemisinin is a component part of current frontline medicines for the treatment of malaria. The aim of this study is to make analogues of artemisinin using microbial transformation and evaluate their in vitro antimalarial activity. A panel of microorganisms were screened for biotransformation of artemisinin (1). The biotransformation products were extracted, purified and isolated using silica gel column chromatography and semi-preparative HPLC. Spectroscopic methods including LC-HRMS, GC–MS, FT-IR, 1D and 2D NMR were used to elucidate the structure of the artemisinin metabolites.1H N

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Lough, Alan J., Karine Villeneuve, and William Tam. "Ethyl 2-acetonyl-3-(1H-isochromen-1-yl)acrylate." Acta Crystallographica Section E Structure Reports Online 62, no. 7 (2006): o2582—o2583. http://dx.doi.org/10.1107/s1600536806019751.

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Shyamlal, Bharti Rajesh Kumar, Manas Mathur, Dharmendra K. Yadav, et al. "Discovery of Natural Product Inspired 3-Phenyl-1H-isochromen-1-ones as Highly Potent Antioxidant and Antiplatelet Agents: Design, Synthesis, Biological Evaluation, SAR and in silico Studies." Current Pharmaceutical Design 27 (November 16, 2021). http://dx.doi.org/10.2174/1381612827666211116102031.

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Background: Several natural/synthetic molecules having structure similar to 1H-isochromen-1-ones have been reported to display promising antioxidants and platelet aggregation inhibitory activity. Isocoumarin (1H-2-benzopyran-1-one) skeleton, either whole or as a part of molecular framework, have been explored for their antioxidant or antiplatelet activities. Introduction: Based on literature, a new prototype i.e., 3-phenyl-1H-isochromen-1-ones based compounds have been rationalized to possess both antioxidant as well as antiplatelet activities. Consequently, no reports are available regarding

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Mayakrishnan, Sivakalai, Y. Arun, and Narayanan Uma Maheswari. "8-Hydroxy-3,4-bis(4-methoxyphenyl)-1H-isochromen-1-one." IUCrData 2, no. 4 (2017). http://dx.doi.org/10.1107/s2414314617005351.

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In the title compound, C23H18O5, the two methoxy-substituted benzene rings are inclined to one another by 67.0 (2)° and to the mean plane of the 1H-isochromene ring system by 67.21 (16) and 27.61 (17)°. There is an intramolecular C—H...π interaction present involving the two 4-methoxyphenyl rings. In the crystal, molecules are linked by O—H...O hydrogen bonds, forming chains propagating along the [301] direction. The chains are linked by a number of C—H...π interactions, forming a three-dimensional structure.

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Xie, Qi, Chuanxin Liao, Hongli Liu, Shirong Wang, and Xianggao Li. "Rational Design of Coumarin‐Based Hybridized Local and Charge‐Transfer Blue Emitters for Solution‐Processed Organic Light‐Emitting Diodes." Chemistry – A European Journal, May 16, 2024. http://dx.doi.org/10.1002/chem.202401078.

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Hybridized local and charge‐transfer (HLCT) with the utilization of both singlet and triplet excitons through the "hot excitons" channel have great application potential in highly efficient blue organic light‐emitting diodes (OLEDs). The proportion of charge‐transfer (CT) and locally excited (LE) components in the relevant singlet and triplet states makes a big difference for the high‐lying reverse intersystem crossing process. Herein, three novel donor (D)‐acceptor (A) type HLCT materials, 7‐([1,1'‐biphenyl]‐4‐yl(9,9‐dimethyl‐9H‐fluoren‐2‐yl)amino)‐3‐phenyl‐1H‐isochromen‐1‐one (pPh‐7P), 7‐([1

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Konovalenko, Artem S., Oleh V. Shablykin, Olga V. Shablykina, et al. "Distinctive Features of 3‐Acetyl‐ and 3‐Benzoyl‐Isocoumarins’ Interaction with Active Primary Amines." ChemistrySelect 8, no. 37 (2023). http://dx.doi.org/10.1002/slct.202301380.

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AbstractIsoquinolones and isoquinolines are crucial natural and synthetic heterocyclic compounds exhibiting a range of biological activities. A less explored strategy for the recyclization of isocoumarins to isoquinolones involves the transformation of 1H‐isochromen‐1‐ones with a carbonyl group at position 3 using primary amines. This study presents a straightforward one‐pot protocol for the recyclization of 3‐acetyl‐ and 3‐benzoylisocoumarins into their corresponding isoquinolone derivatives using structurally diverse primary amines. This provides versatile and scalable routes for accessing a

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van Otterlo, Willem A. L., Joseph P. Michael, and Charles B. de Koning. "ChemInform Abstract: Alternatives to N,N-Diethyl-2,4-dimethoxybenzamide as a Precursor for the Synthesis of 6,8-Dimethoxy-3-methyl-3,4-dihydro-1H-isochromen-1-one." ChemInform 39, no. 11 (2008). http://dx.doi.org/10.1002/chin.200811129.

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Irawan, Candra, Berna Elya, Muhammad Hanafi, and Fadlina Chany Saputri. "The Antioxidant and Anti-Diabetic Chemical Compounds in Rhinacanthus nasutus (L.) Kurz Leaf Extract Were Determined Using UHPLC-MS/MS QTOF." Research Journal of Pharmacy and Technology, February 27, 2025, 495–501. https://doi.org/10.52711/0974-360x.2025.00075.

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Background: Rhinachantus nasutus (L.) Kurz (Rnz) is a plant that has the potential to be an antioxidant as well as an anti-diabetic medication. Traditional medicine has used preparations made from the roots, stems, and leaves of Rnz to treat diabetes. Aim: This study aimed determine the antioxidant and anti-diabetic potential of Rnz leaf extract by inhibiting the activity of dipeptidyl peptidase IV (DPP IV). Method: Rnz leaf samples were extracted using Ultrasound-Assisted Extraction (UAE). Following that, the antioxidant capacity was determined by trapping 2,2-diphenyl-1-picrylhydrazyl (DPPH)

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