Identification of a novel series of tetrahydrodibenzazocines as inhibitors of 17β-hydroxysteroid dehydrogenase type 3
摘要:
A novel series of 17 beta-hydroxysteroid dehydrogenase type 3 (17 beta-HSD3) inhibitors has been identified. These inhibitors, based on a dibenzazocine core, exhibited picomolar to low nanomolar inhibition of 17 beta-HSD3 in cell-free enzymatic as well as in cell-based transcriptional reporter assays. (C) 2005 Elsevier Ltd. All rights reserved.
efficient method for preparing benzothiazolone derivatives was developed by a domino coupling reaction between the disulfide and COS in the present of NaOH. Notably, the C=O of COS was converted into benzothiazolone by carbonylation reaction and the sulfur of COS was transformed into sulfur and sulfide after cleaving the S–S bond undermildconditions. This efficient synthetic methodology could provide
Synthesis and Biological Properties of Benzothiazole, Benzoxazole, and Chromen-4-one Analogues of the Potent Antitumor Agent 2-(3,4-Dimethoxyphenyl)-5-fluorobenzothiazole (PMX 610, NSC 721648)
作者:Stefania Aiello、Geoffrey Wells、Erica L. Stone、Hachemi Kadri、Rana Bazzi、David R. Bell、Malcolm F. G. Stevens、Charles S. Matthews、Tracey D. Bradshaw、Andrew D. Westwell
DOI:10.1021/jm800418z
日期:2008.8.1
New fluorinated 2-aryl-benzothiazoles, -benzoxazoles, and -chromen-4-ones have been synthesized and their activity against MCF-7 and MDA 468 breast cancer cell lines compared with the potent antitumor benzothiazole 5. Analogues such as 9a, b and 12a, dyielded submicromolar GI50 values in both cell lines; however, none of the new compounds approached 5 in terms of antitumor potency. For 5, binding
Highly efficient synthesis of 2-mercaptobenzothiazole derivatives in water: metal sulfide–disulfide dynamic interchange reaction
作者:Chunqing Lou、Ning Zhu、Ronghua Fan、Hailong Hong、Limin Han、Jianbin Zhang、Quanling Suo
DOI:10.1039/c6gc03053j
日期:——
A convenient and efficient method for the synthesis of 2-mercaptobenzothiazoles from disulfide and CS2 mediated by metal sulfide in water is described. This synthetic methodology could be used to prepare...
Catalyst-free reductive cyclization of bis(2-aminophenyl) disulfide with CO<sub>2</sub> in the presence of BH<sub>3</sub>NH<sub>3</sub> to synthesize 2-unsubstituted benzothiazole derivatives
cyclization of various disulfides using BH3NH3 as a reductant and CO2 as a C1 resource was developed. The desired 2-unsubstituted benzothiazole derivatives were obtained in good to excellent yields. Moreover, mechanism investigation demonstrated that BH3NH3 played an important role in the formation of benzothiazole. As a reducing agent, BH3NH3 reduced CO2 and cleaved the S–S bond of the disulfide efficiently