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1

Akune, Yoko, Risa Hirosawa, Atsushi Koseki, and Shinya Matsumoto. "Role of halogen substituents in a series of polymorphic 2,5-diamino-3,6-dicyanopyrazine derivatives with highly flexible groups." Zeitschrift für Kristallographie - Crystalline Materials 232, no. 5 (2017): 395–405. http://dx.doi.org/10.1515/zkri-2016-2007.

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AbstractThe crystal structures of the ortho-X-benzyl derivatives, where X=F, Cl, Br, I, and Me, of 2,5-bis(N,N-dibenzylamino)-3,6-dicyanopyrazine dyes (C34H24N6X4) were analysed to evaluate the effect of a systematic series of structures on the occurrence of polymorphism. Detailed crystal structure analysis indicated that the thermally stable forms of the polymorphic derivatives (Cl and Br derivatives) were close-packed, whereas those of the non-polymorphic derivatives (F and I derivatives) were stabilised by an intermolecular interaction involving the ortho-substituents. In the thermally meta
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2

Stehmann, A., and H. Fr Schröder. "Derivatisation of 4-nonylphenol and bisphenol A with halogenated anhydrides." Water Science and Technology 50, no. 5 (2004): 115–18. http://dx.doi.org/10.2166/wst.2004.0317.

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The aim of this work is to synthesize and characterise the halogenated derivatives of the endocrine disrupting compounds (EDCs) 4-nonylphenol (4-NP) and bisphenol A (BPA). Characterisation was performed after gas chromatographic (GC) separation on-line coupled to mass spectrometric (MS) detector and a Fourier Transform Infrared (FTIR) spectroscopic detector. Further structure elucidation was done applying Nuclear Magnetic Resonance spectroscopy (NMR). Two different approaches for the preparation of derivatives were evaluated. At first trifluoroacetyl derivatives were synthesized by the reactio
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3

WORSHAM, P. R. "ChemInform Abstract: Halogenated Derivatives." ChemInform 24, no. 32 (2010): no. http://dx.doi.org/10.1002/chin.199332295.

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4

Hurtová, Martina, Kristýna Káňová, Simona Dobiasová, et al. "Selectively Halogenated Flavonolignans—Preparation and Antibacterial Activity." International Journal of Molecular Sciences 23, no. 23 (2022): 15121. http://dx.doi.org/10.3390/ijms232315121.

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A library of previously unknown halogenated derivatives of flavonolignans (silybins A and B, 2,3-dehydrosilybin, silychristin A, and 2,3-dehydrosilychristin A) was prepared. The effect of halogenation on the biological activity of flavonolignans was investigated. Halogenated derivatives had a significant effect on bacteria. All prepared derivatives inhibited the AI-2 type of bacterial communication (quorum sensing) at concentrations below 10 µM. All prepared compounds also inhibited the adhesion of bacteria (Staphyloccocus aureus and Pseudomonas aeruginosa) to the surface, preventing biofilm f
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5

Buchta, Vladimír, Milan Pour, Petra Kubanová, et al. "In Vitro Activities of 3-(Halogenated Phenyl)-5-Acyloxymethyl- 2,5-Dihydrofuran-2-ones against Common and Emerging Yeasts and Molds." Antimicrobial Agents and Chemotherapy 48, no. 3 (2004): 873–78. http://dx.doi.org/10.1128/aac.48.3.873-878.2004.

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ABSTRACT Three 3-(halogenated phenyl)-5-acyloxymethyl-2,5-dihydrofuran-2-ones were evaluated for activity against 191 strains of common and emerging yeasts and Aspergillus species by the broth microdilution test performed according to NCCLS guidelines. The furanone derivatives displayed broad-spectrum in vitro activity against potentially pathogenic yeasts and molds, especially Aspergillus spp. (MIC ≤ 2.0 μg/ml) and fluconazole-resistant yeast isolates, including Candida glabrata and Saccharomyces cerevisiae. The 4-bromophenyl derivative was the most effective derivative against the majority o
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6

B. Bakare, S. "Synthesis and biological evaluation of some hybrid 2-quinolinone derivatives containing cinnamic acid as anti-breast cancer drugs." Bulletin of the Chemical Society of Ethiopia 35, no. 3 (2022): 551–64. http://dx.doi.org/10.4314/bcse.v35i3.7.

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ABSTRACT. A new series of hybrid 2-quinolinone derivatives were synthesized by using 7-hydroxy-4-methyl-1-amino-quinolin-2-one (2) and cinnamic acid. Hybrid halogenated 2-quinolinone derivatives (3-(7-hydroxy-4-methyl-3,6,8-tribromo-2-oxo-2H-quinolin-1-ylamino)-3-phenyl acrylic acid (4) and 3-(7-acetoxy-4-methyl-3,6,8-tribromo-2-oxo-1H-quinolin-1-ylamino)-3-phenyl acrylic acid (7)) were prepared via the halogenation of 3-(7-hydroxy-4-methyl-2-oxo-2H-quinolin-1-ylamino)-3-phenyl acrylic acid (3) with bromine to give compound 4 with acetic anhydride led to the formation of hydride halogenated 2-
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7

Youssef-Saliba, Sparta, and Yannick Vallée. "Organo-Halogens and their Possible Involvement in Prebiotic Chemistry." Current Organic Chemistry 24, no. 7 (2020): 774–84. http://dx.doi.org/10.2174/1385272824999200420074204.

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: In this review, we examined the possibility that some halogenated organic derivatives were used in the primitive ocean at the beginning of life on Earth. Firstly, we described the existence of extraterrestrial halogenated molecules, then we studied their nonbiological syntheses on the present Earth, especially in volcanic environments. In order to demonstrate the diversity of today’s halogenated biomolecules, representative examples are given and the biosynthesis of some of them is summarized. Finally, we proposed two aspects of the chemistry of halogenated compounds that may have been usefu
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8

Berrio Escobar, Jhon, MH Pastrana Restrepo, E. Galeano Jaramillo, DM Márquez Fernández, ME Márquez Fernández, and A. Martínez Martínez. "Synthesis and cytotoxic activity of per-acetylated and halogenated derivatives of nucleosides in breast cancer cells." Ars Pharmaceutica (Internet) 58, no. 4 (2017): 145–54. http://dx.doi.org/10.30827/ars.v58i4.6441.

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Objectives. To make the synthesis of halogenated derivatives on the nitrogenous base and their respective acyl ester and amide type derivatives for all hydroxyl and amine groups of the uridine and cytarabine nucleosides, and evaluate cytotoxicity against breast cancer cell line. Methods. First, it was accomplished the halogenation reaction on the 5-position of the nitrogenous base, subsequently, the ester and amide derivatives were performed for all hydroxyl and amine group present in the nucleosides. Besides, the uridine acetonide derivatives as prepared by acid catalysis. The products were c
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9

Li, Chao, and Dayong Shi. "Structural and Bioactive Studies of Halogenated Constituents from Sponges." Current Medicinal Chemistry 27, no. 14 (2020): 2335–60. http://dx.doi.org/10.2174/0929867325666181112092159.

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: Marine organisms are abundant sources of bioactive natural products. Among metabolites produced by sponges and their associated microbial communities, halogenated natural compounds accounted for an important part due to their potent biological activities. The present review updates and compiles a total of 258 halogenated organic compounds isolated in the past three decades, especially brominated derivatives derived from 31 genera of marine sponges. These compounds can be classified as the following classes: brominated polyunsaturated lipids, nitrogen compounds, brominated tyrosine derivative
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10

Jesus, Ana, Marta Correia-da-Silva, Carlos Afonso, Madalena Pinto, and Honorina Cidade. "Isolation and Potential Biological Applications of Haloaryl Secondary Metabolites from Macroalgae." Marine Drugs 17, no. 2 (2019): 73. http://dx.doi.org/10.3390/md17020073.

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Macroalgae have been reported as an important source of halogenated aromatic secondary metabolites, being the majority of these derivatives isolated from red algae. Halophenols and haloindoles are the most common haloaryl secondary metabolites isolated from these marine organisms. Nevertheless, some halogenated aromatic sesquiterpenes and naphthalene derivatives have also been isolated. Most of these secondary metabolites showed interesting biological activities, such as antitumor, antimicrobial, antidiabetic, and antioxidant. This review describes in a systematic way the distribution and natu
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11

Martin, Aurelio San, Juana Rovinosa, Alvaro Carrasco, et al. "Microbial Transformation of Marine Halogenated Sesquiterpenes." Natural Product Communications 5, no. 12 (2010): 1934578X1000501. http://dx.doi.org/10.1177/1934578x1000501203.

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The sesquiterpene pacifenol is one of the main constituents of the red alga Laurencia claviformis. Earlier work on the semisynthetic derivatives of pacifenol afforded a series of halogenated sesquiterpenes. The aim of the present work was to obtain new hydroxylated derivatives of halogenated sesquiterpenes by means of microbial transformation using Aspergillus níger, Gibberella fujikuroi and Mucor plumbeus. The best results were obtained with M. plumbeus. The microbiological transformation by M. plumbeus of pacifenol, and two semisynthetic derivatives, is described. The structures of the new c
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12

Twomey, Dermot. "Some novel halogenated phenazine derivatives." Journal of Heterocyclic Chemistry 23, no. 2 (1986): 615–20. http://dx.doi.org/10.1002/jhet.5570230262.

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13

Zaki, Islam, Sarah A. Eid, Mohamed S. Elghareb, Al-Shimaa M. Abas, Gaber Mersal, and Faten Z. Mohammed. "In Vitro Antitumor Evaluation of Acrylic Acid Derivatives Bearing Quinolinone Moiety as Novel Anticancer Agents." Anti-Cancer Agents in Medicinal Chemistry 22, no. 9 (2022): 1634–42. http://dx.doi.org/10.2174/1871520621666211103105255.

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Background: Due to the emergence of resistance to available anticancer agents, the demand for new cytotoxic agents has grown. Objective: This study aims at synthesis and cytotoxic evaluation of new acrylic acid derivatives bearing quinolinone and halogenated quinolinone derivatives against three cancer cell lines. Methods: New acrylic acid derivatives bearing quinolinone and halogenated quinolinone moieties were synthesized and screened for their cytotoxic activity against breast MCF-7, liver HepG2, and colon HCT-116 cancer cell lines. Results: Molecules 3 and 8 showed the most potent cytotoxi
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14

Matyugina, Elena S., Evgeniya B. Logashenko, Marina A. Zenkova, Sergey N. Kochetkov, and Anastasia L. Khandazhinskaya. "5′-Norcarbocyclic analogues of furano[2,3-d]pyrimidine nucleosides." Heterocyclic Communications 21, no. 5 (2015): 259–62. http://dx.doi.org/10.1515/hc-2015-0160.

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Abstract5′-Norcarbocyclic analogues of furano[2,3-d]pyrimidine nucleosides as well as 5-bromo and 5-iodouracil derivatives were synthesized to evaluate their potential antitumor activity. The halogenated derivatives display no cytotoxicity with respect to all tested cells: KB-3-1 (human epidermoid carcinoma), HeLa (human cervical epithelioid carcinoma), HuTu-80 (human duodenal cancer), B16 (mouse melanoma), and MDCK (normal epithelial). The cytotoxicity of the non-halogenated furano[2,3-d]pyrimidine derivatives increases with the lengthening of the alkyl chain of the substituent from 45 to 60
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15

Arshad, Uzma, Sibtain Ahmed, Nusrat Shafiq, et al. "Structure-Based Designing, Solvent Less Synthesis of 1,2,3,4-Tetrahydropyrimidine-5-carboxylate Derivatives: A Combined In Vitro and In Silico Screening Approach." Molecules 26, no. 15 (2021): 4424. http://dx.doi.org/10.3390/molecules26154424.

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Objective: In this study, small molecules possessing tetrahydropyrimidine derivatives have been synthesized having halogenated benzyl derivatives and carboxylate linkage. As previously reported, FDA approved halogenated pyrimidine derivatives prompted us to synthesize novel compounds in order to evaluate their biological potential. Methodology: Eight pyrimidine derivatives have been synthesized from ethyl acetoacetate, secondary amine, aromatic benzaldehyde by adding catalytic amount of CuCl2·2H2O via solvent less Grindstone multicomponent reagent method. Molecular structure reactivity and vir
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16

Jankovský, O., P. Šimek, K. Klimová, et al. "Towards graphene bromide: bromination of graphite oxide." Nanoscale 6, no. 11 (2014): 6065–74. http://dx.doi.org/10.1039/c4nr01154f.

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17

Khater, Mai, Kimberly A. Watson, Samuel Y. Boateng, Francesca Greco, and Helen M. I. Osborn. "Halogenated Flavonoid Derivatives Display Antiangiogenic Activity." Molecules 27, no. 15 (2022): 4757. http://dx.doi.org/10.3390/molecules27154757.

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Antiangiogenic agents attenuate tumours’ growth and metastases and are therefore beneficial as an adjuvant or standalone cancer regimen. Drugs with dual antiproliferative and antiangiogenic activities can achieve anticancer efficacy and overcome acquired resistance. In this study, synthetic flavones (5a,b) with reported anticancer activity, and derivatives (4b and 6a), exhibited significant inhibition of endothelial cell tube formation (40–55%, 12 h) at 1 µM, which is comparable to sunitinib (50% inhibition at 1 µM, 48 h). Flavones (4b, 5a,b and 6a) also showed 25–37% reduction in HUVECs migra
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18

IGUCHI, Kazuo, Soichiro KANETA, Chieko TSUNE, and Yasuji YAMADA. "Synthesis of 10-halogenated clavulone derivatives." CHEMICAL & PHARMACEUTICAL BULLETIN 37, no. 5 (1989): 1173–75. http://dx.doi.org/10.1248/cpb.37.1173.

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19

Boto, Alicia, Juan A. Gallardo, Rosendo Hernández, et al. "Genotoxic activity of halogenated phenylglycine derivatives." Bioorganic & Medicinal Chemistry Letters 16, no. 23 (2006): 6073–77. http://dx.doi.org/10.1016/j.bmcl.2006.08.111.

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20

Jeon, Hyejin, Yong-Guy Kim, Jin-Hyung Lee, and Jintae Lee. "Antibiofilm Activities of Halogenated Pyrimidines Against Enterohemorrhagic Escherichia coli O157:H7." International Journal of Molecular Sciences 26, no. 3 (2025): 1386. https://doi.org/10.3390/ijms26031386.

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Enterohemorrhagic Escherichia coli (EHEC) is a significant public health concern due to its ability to form biofilms, enhancing its resistance to antimicrobials and contributing to its persistence in food processing environments. Traditional antibiotics often fail to target these biofilms effectively, leading to increased bacterial resistance. This study aims to explore the efficacy of novel antibiofilm agents, specifically halogenated pyrimidine derivatives, against EHEC. We screened pyrimidine and 31 halogenated pyrimidine derivatives for their antimicrobial and antibiofilm activities agains
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21

Santos, Ricardo, Diana Pinto, Clara Magalhães, and Artur Silva. "Halogenated Flavones and Isoflavones: A State-of-Art on their Synthesis." Current Organic Synthesis 17, no. 6 (2020): 415–25. http://dx.doi.org/10.2174/1570179417666200530213737.

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Background: Flavonoid is a family of compounds present in the everyday consumption plants and fruits, contributing to a balanced diet and beneficial health effects. Being a scaffold for new drugs and presenting a wide range of applicability in the treatment of illnesses give them also an impact in medicine. Among the several types of flavonoids, flavone and isoflavone derivatives can be highlighted due to their prevalence in nature and biological activities already established. The standard synthetic route to obtain both halogenated flavones and isoflavones is through the use of already haloge
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22

Grepioni, F., S. d'Agostino, D. Braga, A. Bertocco, L. Catalano, and B. Ventura. "Fluorescent crystals and co-crystals of 1,8-naphthalimide derivatives: synthesis, structure determination and photophysical characterization." Journal of Materials Chemistry C 3, no. 36 (2015): 9425–34. http://dx.doi.org/10.1039/c5tc01518a.

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23

Hurtová, Martina, David Biedermann, Zuzana Osifová, Josef Cvačka, Kateřina Valentová, and Vladimír Křen. "Preparation of Synthetic and Natural Derivatives of Flavonoids Using Suzuki–Miyaura Cross-Coupling Reaction." Molecules 27, no. 3 (2022): 967. http://dx.doi.org/10.3390/molecules27030967.

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Herein, we report the use of the Suzuki–Miyaura cross-coupling reaction for the preparation of a library of synthetic derivatives of flavonoids for biological activity assays. We have investigated the reactivity of halogenated flavonoids with aryl boronates and with boronyl flavonoids. This reaction was used to prepare new synthetic derivatives of flavonoids substituted at C-8 with aryl, heteroaryl, alkyl, and boronate substituents. The formation of flavonoid boronate enabled a cross-coupling reaction with halogenated flavones yielding biflavonoids connected at C-8. This method was used for th
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24

Khamgaonkar, Saikiran Sunil, and Vivek Maheshwari. "Dipolar Halogenated Polystyrene Derivates Passivated Inverted Perovskite Solar Cell with Improved Efficiency and Stability." ECS Meeting Abstracts MA2025-01, no. 16 (2025): 1185. https://doi.org/10.1149/ma2025-01161185mtgabs.

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Halide Perovskite solar cells have shown a rapid rise in efficiency due to their excellent optoelectronic properties. However, simultaneous efficiency improvement with long-term stability is essential for the commercialization of this technology. In this study, we have utilized halogenated polystyrene (PS) derivatives namely, PS-X (X=Br, Cl, F) and penta fluorostyrene (PFS) as a polymeric passivation agent for perovskite solar cells. The interaction between the individual PS derivatives and the perovskite precursor causes the crosslinking of the polymer, leading to effective bulk perovskite pa
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25

Pham, Phuong-Truc T., та Mamoun M. Bader. "α-Halogenated Curcumins". Crystals 14, № 12 (2024): 1041. https://doi.org/10.3390/cryst14121041.

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α- or 4-Substituted curcumin analogues are scarce. We describe herein the syntheses and crystal structures of the first α-halogenated curcumin derivatives: (1E,6E)-1,7-bis (4-hydroxy-3-methoxyphenyl)-4-bromo-5-hydroxy-1,3,6-heptatriene-3-one or (4-bromocurcumin) (1) and (1E,6E)-1,7-bis (4-hydroxy-3-methoxyphenyl)-4-chloro-5-hydroxy-1,3,6-heptatriene-3-one or (4-chlorocurcumin) (2). We note that the key step in the successful synthesis of the bromo-analog is the use of slightly acidic media to favor the diketo form of curcumin prior to carrying out the reaction. Both newly prepared compounds as
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Seibert, Elisabeth, Olaf Kunert, Eva-Maria Pferschy-Wenzig, and Martin G. Schmid. "Characterization of Three Novel 4-Methylaminorex Derivatives Applied as Designer Drugs." Molecules 27, no. 18 (2022): 5770. http://dx.doi.org/10.3390/molecules27185770.

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The ongoing development of more and more new psychoactive substances continues to be a huge problem in 2022 affecting the European and international drug market. Through slight alterations in the structure of illicit drugs, a way to circumvent the law is created, as the created derivatives serve as legal alternatives with similar effects. A common way of structure modification is the induction of a halogen residue. Recently, halogenated derivatives of the well-known designer drug 4-methylaminorex appeared on the market and are available in various online shops. In this study, three novel halog
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27

Mi, Yingqi, Wenqiang Tan, Jingjing Zhang, et al. "Synthesis, Characterization, and Antifungal Property of Hydroxypropyltrimethyl Ammonium Chitosan Halogenated Acetates." Marine Drugs 16, no. 9 (2018): 315. http://dx.doi.org/10.3390/md16090315.

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Hydroxypropyltrimethyl ammonium chitosan halogenated acetates were successfully synthesized from six different haloacetic acids and hydroxypropyltrimethyl ammonium chloride chitosan (HACC) with high substitution degree, which are hydroxypropyltrimethyl ammonium chitosan bromacetate (HACBA), hydroxypropyltrimethyl ammonium chitosan chloroacetate (HACCA), hydroxypropyltrimethyl ammonium chitosan dichloroacetate (HACDCA), hydroxypropyltrimethyl ammonium chitosan trichloroacetate (HACTCA), hydroxypropyltrimethyl ammonium chitosan difluoroacetate (HACDFA), and hydroxypropyltrimethyl ammonium chitos
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28

Atabati, Hossein, Kobra Zarei, and Hamid Reza Zare-Mehrjardi. "QSAR Studies of Halogenated Pyrimidine Derivatives as Inhibitors of Human Dihydroorotate Dehydrogenase Using Modified Bee Algorithm." Combinatorial Chemistry & High Throughput Screening 21, no. 5 (2018): 381–87. http://dx.doi.org/10.2174/1386207321666180611092540.

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Aim and Objective: Human dihydroorotate dehydrogenase (DHODH) catalyzes the fourth stage of the biosynthesis of pyrimidines in cells. Hence it is important to identify suitable inhibitors of DHODH to prevent virus replication. In this study, a quantitative structure-activity relationship was performed to predict the activity of one group of newly synthesized halogenated pyrimidine derivatives as inhibitors of DHODH. Materials and Methods: Molecular structures of halogenated pyrimidine derivatives were drawn in the HyperChem and then molecular descriptors were calculated by DRAGON software. Fin
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29

Włodarczyk-Makuła, Maria, and Ewa Wiśniowska. "Halogenated Organic Compounds in Water and in Wastewater." Civil and Environmental Engineering Reports 29, no. 4 (2019): 236–47. http://dx.doi.org/10.2478/ceer-2019-0057.

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Abstract Currently, organic halogen compounds (halogen derivatives) are often identified in water. The paper presents the problem of the presence of these newly formed compounds during water treatment processes and their occurrence in sewage. The general indicator determining the content of these compounds in aqueous solutions is the concentration of halogen derivatives of organic compounds adsorbed on activated carbon AOX, which is converted to the concentration of chlorides. The groups of derivatives of halogenated organic compounds containing chlorine and/or bromine in a molecule were chara
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30

Savoie, Rodrique, André Rodrigue, Marie Pigeon-Gosselin, and Robert Chênevert. "Synthesis and vibrational spectra of complexes of small carboxylic acids with 18-crown-6." Canadian Journal of Chemistry 63, no. 7 (1985): 1457–62. http://dx.doi.org/10.1139/v85-249.

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The neutral-component complexes (HCOOH)3•(18-crown-6)2, (CH3COOH)2•18-crown-6, and various halogenated CH3COOH/18-crown-6 adducts have been isolated and studied by infrared and Raman spectroscopy. The halogenated (F, Cl, and Br) derivatives, which occur as (acid•water)x•18-crown-6(x = 1 or 2) adducts, probably have a structure which is similar to that of the known CH2(CN)COOH•H2O•18-crown-6 complex.
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31

Turnbull, Mark M., Carmen Valdez, Edward H. Wong, Eric J. Gabe, and Florence L. Lee. "Halogenated derivatives of the dimolybdenum tetraphosphoxane cage." Inorganic Chemistry 31, no. 2 (1992): 208–14. http://dx.doi.org/10.1021/ic00028a016.

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Martín, María Jesús, Fabrice Berrué, Philippe Amade, et al. "Halogenated Helianane Derivatives from the SpongeSpirastrella hartmani." Journal of Natural Products 68, no. 10 (2005): 1554–55. http://dx.doi.org/10.1021/np050247f.

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Baumeister, Tim U. H., Mona Staudinger, Marino Wirgenings, and Georg Pohnert. "Halogenated anilines as novel natural products from a marine biofilm forming microalga." Chemical Communications 55, no. 79 (2019): 11948–51. http://dx.doi.org/10.1039/c9cc05992j.

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A microalga produces the toxic halogenated anilines 2,4,6-tribromoaniline, 2,4,6-trichloroaniline and their dibromochloro and bromodichloro derivatives that were considered as compounds of exclusive synthetic origin.
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Thalladi, Venkat R., Hans-Christoph Weiss, Roland Boese, Ashwini Nangia та Gautam R. Desiraju. "A comparative study of the crystal structures of tetrahalogenated hydroquinones and γ-hydroquinone". Acta Crystallographica Section B Structural Science 55, № 6 (1999): 1005–13. http://dx.doi.org/10.1107/s0108768199005911.

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γ-Hydroquinone (1) and its tetrafluoro, tetrachloro and tetrabromo derivatives (2), (3) and (4) adopt crystal structures that have an almost invariant system of O—H...O hydrogen bonds. However, within this O—H...O framework, the four structures display variations that are characteristic of the C—H, C—F, C—Cl and C—Br groups. In the parent compound (1) aromatic rings are packed with a herringbone geometry, whilst in the halogenated derivatives (3) and (4), polarization-type halogen...halogen contacts are optimized. The fluoro derivative (2) is exceptional in that neither of the above possibilit
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Walter, Antje, Lorenzo Caputi, Sarah O’Connor, Karl-Heinz van Pée, and Jutta Ludwig-Müller. "Chlorinated Auxins—How Does Arabidopsis Thaliana Deal with Them?" International Journal of Molecular Sciences 21, no. 7 (2020): 2567. http://dx.doi.org/10.3390/ijms21072567.

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Plant hormones have various functions in plants and play crucial roles in all developmental and differentiation stages. Auxins constitute one of the most important groups with the major representative indole-3-acetic acid (IAA). A halogenated derivate of IAA, 4-chloro-indole-3-acetic acid (4-Cl-IAA), has previously been identified in Pisum sativum and other legumes. While the enzymes responsible for the halogenation of compounds in bacteria and fungi are well studied, the metabolic pathways leading to the production of 4-Cl-IAA in plants, especially the halogenating reaction, are still unknown
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36

Kalaj, Mark, Mohammad R. Momeni, Kyle C. Bentz, et al. "Halogen bonding in UiO-66 frameworks promotes superior chemical warfare agent simulant degradation." Chemical Communications 55, no. 24 (2019): 3481–84. http://dx.doi.org/10.1039/c9cc00642g.

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37

Abu Saleh, Md, Md Solayman, Mohammad Mazharol Hoque, Mohammad A. K. Khan, Mohammed G. Sarwar та Mohammad A. Halim. "Inhibition of DNA Topoisomerase Type IIα(TOP2A) by Mitoxantrone and Its Halogenated Derivatives: A Combined Density Functional and Molecular Docking Study". BioMed Research International 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/6817502.

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In this study, mitoxantrone and its halogenated derivatives have been designed by density functional theory (DFT) to explore their structural and thermodynamical properties. The performance of these drugs was also evaluated to inhibit DNA topoisomerase type IIα(TOP2A) by molecular docking calculation. Noncovalent interactions play significant role in improving the performance of halogenated drugs. The combined quantum and molecular mechanics calculations revealed that CF3containing drug shows better preference in inhibiting the TOP2A compared to other modified drugs.
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38

Coulibali, Siomenan, Souleymane Coulibaly, Patrick-Armand Achi, Kouassi Yves Guillaume Sissouma Drissa Molou, and Ané Adjou. "Synthesis of New Thiazolopyrimidines and 2-Alkylthiopyrimidines Derivatives." Pharmaceutical and Chemical Journal 9, no. 1 (2022): 5–10. https://doi.org/10.5281/zenodo.13970008.

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In this work, we reported the synthesis of derivative&rsquo;s 2-thiopyrimidine substituted on the positions -1 and -2 by the alkyl groups. The bicyclic scaffold (<strong>6a</strong> and <strong>6b</strong>) were obtained via condensation of 2-thiopyrimidines (<strong>4a</strong> and <strong>4b</strong>) with dihalogenated ethane <strong>5</strong> in the presence of potassium carbonate<strong>.</strong> We got the 2-thioalkylpyrimidine derivatives (<strong>8a</strong>-<strong>f</strong>) with the same workup, condensing halogenated alkyls <strong>7</strong> with 2-thiopyrimidines (<strong>4a</
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39

Guo, Qiang, Shiyi Zhou, Xiaoyu Li, et al. "Ultralong room-temperature phosphorescence remarkably weakened by halogenation-induced molecular packing in hexaphenylmelamine derivatives." Chemical Communications 57, no. 50 (2021): 6177–80. http://dx.doi.org/10.1039/d1cc01533h.

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The ultralong room-temperature phosphorescence (RTP) properties of a series of pure organic halogenated hexaphenylmelamine (HPM) derivatives were remarkably weakened by the subtle change of halogenation-induced molecular packing.
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40

Sun, Kai, Baixue Luan, Zhenhua Liu, et al. "Mild and regioselective azol-halogenation of alkenes." Organic & Biomolecular Chemistry 17, no. 17 (2019): 4208–11. http://dx.doi.org/10.1039/c9ob00317g.

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An economical, practical, and environmentally benign azol-halogenation protocol of alkenes was developed, which provides a general approach to construct a series of structurally diverse β-halogenated amine derivatives.
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41

Li, Changfu, Yingying Chai, Xinglong Zhou, et al. "Choice of hydrogen bonds or halogen bonds by 2-halogenated 5-morpholinomethylphenyl triazolo[1,5-a]pyridine." CrystEngComm 20, no. 22 (2018): 3006–10. http://dx.doi.org/10.1039/c8ce00423d.

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The crystal structures of halogenated 1,2,4-triazolo[1,5-a]pyridine derivatives disclose intriguing structural chemistry features dictated by the formation of either hydrogen bonds (HBs) or halogen bonds (XBs).
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42

Hoffarth, Elesha R., Sunnie Kong, Hai-Yan He, and Katherine S. Ryan. "An engineered biosynthetic–synthetic platform for production of halogenated indolmycin antibiotics." Chemical Science 12, no. 25 (2021): 8817–21. http://dx.doi.org/10.1039/d0sc05843b.

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A semi-synthetic system for producing indolmycin, an antibiotic, was developed and used to make indole-substituted, halogenated derivatives of indolmycin, some with modest bioactivity against methicillin-resistant Staphylococcus aureus.
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43

Xu, Pengfei, Qianqian Qiu, Xinru Ye, et al. "Halogenated tetraphenylethene with enhanced aggregation-induced emission: an anomalous anti-heavy-atom effect and self-reversible mechanochromism." Chemical Communications 55, no. 99 (2019): 14938–41. http://dx.doi.org/10.1039/c9cc07045a.

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Halogenated tetraphenylethene derivatives show an anomalous anti-heavy-atom effect where introducing heavy halogens into the typical AIEgen greatly improves the fluorescence quantum yield upon aggregation, and a self-reversible mechanochromism.
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44

Ghamsari, Parnia Abyar, Marjaneh Samadizadeh, and Mahmoud Mirzaei. "Halogenated derivatives of cytidine: Structural analysis and binding affinity." Journal of Theoretical and Computational Chemistry 19, no. 08 (2020): 2050033. http://dx.doi.org/10.1142/s0219633620500339.

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Cytidine is a well-known inhibitor of DNA methyltransferase (MTN) enzyme for preventing cancer cells growth. Based on therapeutic benefits, it could be considered as a “lead compound” to be optimized through structural modification for arising better binding affinity in this case. Halogenated derivatives of cytidine were investigated in this work to examine structural and biological features employing in silico approach. To this aim, geometries of the original cytidine and four of its halogenated derivatives were minimized to prepare ligands for interacting with MTN enzyme target in molecular
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45

Burgdorff, C., S. Ehrhardt, and H. G. Loehmannsroeben. "Photophysical properties of tetracene derivatives in solution. 2. Halogenated tetracene derivatives." Journal of Physical Chemistry 95, no. 11 (1991): 4246–49. http://dx.doi.org/10.1021/j100164a016.

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46

Nelson, Grady L., Michael J. Williams, Shirisha Jonnalagadda, et al. "Synthesis and Evaluation of Baylis-Hillman Reaction Derived Imidazole and Triazole Cinnamates as Antifungal Agents." International Journal of Medicinal Chemistry 2018 (October 16, 2018): 1–8. http://dx.doi.org/10.1155/2018/5758076.

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Allylic acetates derived from Baylis-Hillman reaction undergo efficient nucleophilic isomerization with imidazoles and triazoles to provide imidazolylmethyl and triazolylmethyl cinnamates stereoselectively. Antifungal evaluation of these derivatives against Cryptococcus neoformans exhibits good minimum inhibitory concentration values. These compounds exhibit low toxicity in proliferating MCF-7 breast cancer cell line. Structure activity relationship studies indicate that halogenated aromatic derivatives provide better antifungal activity.
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47

Liu, Ying-Hsuan, Afshin Dadvand, Hatem M. Titi, Ehsan Hamzehpoor та Dmitrii F. Perepichka. "Halogen bonding vs. π-stacking interactions in new bis(acenaphthylene)dione semiconductors". CrystEngComm 23, № 47 (2021): 8255–59. http://dx.doi.org/10.1039/d1ce01047f.

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A series of new halogenated bis(acenaphthylene)dione (BAN) derivatives was synthesized, and the effect of halogen bonding on both molecular and crystal structure, and charge transport in n-type thin film transistors was investigated.
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48

Koester, Dennis C., and Daniel B. Werz. "Sonogashira–Hagihara reactions of halogenated glycals." Beilstein Journal of Organic Chemistry 8 (May 2, 2012): 675–82. http://dx.doi.org/10.3762/bjoc.8.75.

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Herein, we report on our findings of the Sonogashira–Hagihara reaction with 1-iodinated and 2-brominated glycals using several aromatic and aliphatic alkynes. This Pd-catalyzed cross-coupling reaction presents a facile access to alkynyl C-glycosides and sets the stage for a reductive/oxidative refunctionalization of the enyne moiety to regenerate either C-glycosidic structures or pyran derivatives with a substituent in position 2.
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49

H., H. GARCHAR, and H. PARSANIA P. "Kinetics of Thermal Behaviour of Halogenated Derivatives of Bisphenol-C and Bisphenol-S." Journal of Indian Chemical Society Vol. 74, Mar 1997 (1997): 225–27. https://doi.org/10.5281/zenodo.5889745.

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Department of Chenu,try, Saurashtra University, Rajkot-360 005 <em>Manuscript received 18 February 1994. revised 19 September 1995, accepted 27 October 1995</em> Kinetics of Thermal Behaviour of Halogenated Derivatives of Bisphenol-C and Bisphenol-S. &nbsp;
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50

Kux, Ulrich, Hironori Suzuki, Shigeru Sasaki, and Masahiko Iyoda. "Syntheses and Properties of Halogenated EDT-TTF Derivatives." Chemistry Letters 24, no. 3 (1995): 183–84. http://dx.doi.org/10.1246/cl.1995.183.

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