- Discovery and biological evaluation of novel androgen receptor antagonist for castration-resistant prostate cancer
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Prostate cancer (PC) is the second most common malignancy in men worldwide. Among current therapies, two antiandrogens, Abiraterone Acetate and Enzalutamide (Enza) have become the standard of care for patients with metastatic castration-resistant prostate
- Yu, Jiang,Zhang, Lanxi,Yan, Guoyi,Zhou, Peiting,Cao, Chaoguo,Zhou, Fei,Li, Xinghai,Chen, Yuanwei
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Read Online
- Preparation of 4-aryl-2-trifluoromethylbenzonitrile derivatives as androgen receptor antagonists for topical suppression of sebum production
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A series of substituted 4-aryl-2-trifluoromethylbenzonitrile analogs were evaluated in the human androgen receptor binding and cellular functional assays. Analogs with sufficient in vitro binding and cellular potency (IC50 200 nM) were tested in the progesterone receptor binding assay for selectivity and in the Golden Syrian hamster ear model for in vivo efficacy. Within the series, compound 4e was identified to be the most active analog in vivo (wax ester inhibition = 86%).
- Van Camp, Jennifer A.,Hu, Lain-Yen,Kostlan, Catherine,Lefker, Bruce,Li, Jie,Mitchell, Lorna,Wang, Zhi,Yue, Wen-Song,Carroll, Matthew,Dettling, Danielle,Du, Daniel,Pocalyko, David,Wade, Kimberly
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Read Online
- Visible-Light photoredox decarboxylation of perfluoroarene iodine(III) Trifluoroacetates for C-H trifluoromethylation of (Hetero)arenes
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A scalable and operationally simple decarboxylative trifluoromethylation of (hetero)arenes with easily accessible C6F5I(OCOCF3)2 under photoredox catalysis has been developed. This method is tolerant of various (hetero)arenes and functional groups. Notably, C6F5I is recycled from the decarboxylation reaction and further used for the preparation of C6F5I(OCOCF3)2. The combination of photoredox catalysis and hypervalent iodine reagent provides a practical approach for the application of trifluoroacetic acid in trifluoromethylation reactions.
- Yang, Bin,Yu, Donghai,Xu, Xiu-Hua,Qing, Feng-Ling
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p. 2839 - 2843
(2018/04/14)
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- Silver-Catalyzed C-H Trifluoromethylation of Arenes Using Trifluoroacetic Acid as the Trifluoromethylating Reagent
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Direct trifluoromethylation of arenes using TFA as the trifluoromethylating reagent was achieved with Ag as the catalyst. This reaction not only provides a new protocol for aryl C-H trifluoromethylation, but the generation of CF3· from TFA may prove useful in other contexts and could potentially be extended to other trifluoromethylation reactions. (Chemical Equation Presented).
- Shi, Guangfa,Shao, Changdong,Pan, Shulei,Yu, Jingxun,Zhang, Yanghui
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supporting information
p. 38 - 41
(2015/07/28)
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- Cyclic amine compounds
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The present invention relates to pharmaceutical agents which are agents for the prophylaxis or treatment of hypogonadism, male climacteric disorder, frailty, cachexia or osteoporosis; the pharmaceutical agents frailty suppressants, muscle strength enhance
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Page/Page column 23
(2009/03/07)
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- Process for producing trifluoromethylbenzylamines
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The invention relates to a process for producing a trifluotomethylbenzylamine represented by the following general formula (1), 1where each R independently represents a halogen selected from the group consisting of fluorine, chlorine, bromine and iodine, an alkyl group having a carbon atom number of 1-4, an alkoxy group having a carbon atom number of 1-4, an amino group, a hydroxyl group or a trifluoromethyl group, and n represents an integer from 0 to 4. The process includes hydrogenating a trifluoromethylbenzonitrile by hydrogen in an organic solvent in the presence of ammonia and a catalyst containing a platinum group element. This trifluoromethylbenzonitrile is represented by the following general formula (2), 2where R and n are defined as above. With this process, it is possible to obtain the trifluoromethylbenzylamine at an extremely high yield.
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- Process for producing trifluoromethylbenzylamines
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The invention relates to a process for producing a trifluoromethylbenzylamine represented by the following general formula (1). This process includes hydrogenating a trifliuoromethylbenzonitrile represented by the following general formula (2) by hydrogen in an organic solvent in the presence of ammonia, using a Raney catalyst, where each R independently represents a halogen selected from the group consisting of fluorine, chlorine, bromine and iodine, an alkyl group having a carbon atom number of 1-4, an alkoxy group having a carbon atom number of 1-4, an amino group, a hydroxyl group or a trifluoromethyl group, and n represents an integer from 0 to 4, where R and n are defined as above. With this process, it is possible to obtain the trifluoromethylbenzylamine easily and inexpensively at an extremely high yield.
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