1,2,4-Oxadiazoles: A new class of anti-prostate cancer agents
摘要:
Sulfide and sulfonyl derivatives of 1,2,4-oxadiazoles were synthesized and screened by MTT assay on the prostate cancer cells, DU-145. Six compounds were identified as potential anti-prostate cancer agents with IC50 values ranging from 0.5 to 5.1 mu M. These compounds exhibited good activity on the androgen independent cells PC-3, while the results were moderate on androgen dependent LNCaP cells, suggesting the possibility of a mechanism of action different from that of the bioisosteric bicalutamide. Also a very low cytotoxicity was observed on non-cancerous cells MCF-10A. (c) 2012 Elsevier Ltd. All rights reserved.
1,2,4-Oxadiazoles: A new class of anti-prostate cancer agents
摘要:
Sulfide and sulfonyl derivatives of 1,2,4-oxadiazoles were synthesized and screened by MTT assay on the prostate cancer cells, DU-145. Six compounds were identified as potential anti-prostate cancer agents with IC50 values ranging from 0.5 to 5.1 mu M. These compounds exhibited good activity on the androgen independent cells PC-3, while the results were moderate on androgen dependent LNCaP cells, suggesting the possibility of a mechanism of action different from that of the bioisosteric bicalutamide. Also a very low cytotoxicity was observed on non-cancerous cells MCF-10A. (c) 2012 Elsevier Ltd. All rights reserved.
Hydroxysulfenylation of Electron-Deficient Alkenes through an Aerobic Copper Catalysis
作者:Hui Xi、Bicheng Deng、Zhenzhen Zong、Shenglin Lu、Zhiping Li
DOI:10.1021/acs.orglett.5b00112
日期:2015.3.6
A copper-catalyzed hydroxysulfenylation of α,β-unsaturated esters/amides is reported. The method presents a selective and efficient synthesis of β-hydroxysulfides bearing electron-withdrawing groups. The synthetic utility of this method is demonstrated by the concise synthesis of the anticancer drug bicalutamide.
The object of the invention is an improved procedure for the synthesis of bicalutamide, characterised in that the 2-hydroxy-2-methyl-3-(4-fluorophenylthio) propionic acid initially produced undergoes a step to acylate the hydroxyl group in position 2 to give an intermediate 2-acyloxy-2-methyl-3-(4-fluorophenylthio) propionic acid, which allows the formation of a successive N-[4-cyano-3-(trifluoromethyl)-phenyl-]-3-[4-fluorophenylthio]-2-acyloxy-2-methyl-propionamide intermediate.
Novel process for preparing rac-bicalutamide and its intermediates
申请人:——
公开号:US20030045741A1
公开(公告)日:2003-03-06
The present invention relates to a new process for the synthesis of racemic and optically active bicalutamide starting from ethyl pyruvate and methyl methacrylate. The present invention discloses processes of preparing bicalutamide intermediates including ethyl-[2-{4-fluorophenyl sulfone}]-2-hydroxy propionate, 1,2-epoxy-2-methyl propionate and 2-hydrox-2-methyl-3-(4-fluorophenylthio)propionic acid. The present invention further discloses micronized rac-bicalutamide and the preparation thereof.
Novel process for preparing and isolating rac-bicalutamide and its intermediates
申请人:——
公开号:US20040044249A1
公开(公告)日:2004-03-04
The present invention relates to a new process for the synthesis of racemic and optically active bicalutamide starting from ethyl pyruvate and methyl methacrylate. The present invention discloses processes of preparing bicalutamide intermediates including ethyl-[2-{4-fluorophenyl sulfone}]-2-hydroxy propionate, 1,2-epoxy-2-methyl propionate and 2-hydrox-2-methyl-3-(4-fluorophenylthio) propionic acid. The present invention further discloses micronized rac-bicalutamide and the preparation thereof. The present invention further discloses a new process for the isolation and purification of racemic and optically active bicalutamide.