Novel and potent inhibitors of 17β-hydroxysteroid dehydrogenase type 3 (17β-HSD3) were identified based on oxazolidinedione and thiazolidinedione derivatives, starting from a high-throughput screening hit, 5-(3-bromo-4-hydroxybenzyl)-3-(4-methoxyphenyl)-1,3-thiazol-2-one 1. 5-(3-Bromo-4-hydroxybenzylidene)-3-(4-methoxyphenyl)-2-thioxo-1,3-thiazolidin-4-one 21 exhibited a promising activity profile
An azole compound represented by the formula (I): ##STR1## wherein Ar is a substituted phenyl group; R.sup.1 and R.sup.2 independently are a hydrogen atom or a lower alkyl group, or R.sup.1 and R.sup.2 may combine together to form a lower alkylene group; R.sup.3 is a group bonded through a carbon atom; R.sup.4 is a hydrogen atom or an acyl group; X is a nitrogen atom or a methine group; and n Y and Z independently are a nitrogen atom or a methine group which may optionally be substituted with a lower alkyl group, or a salt thereof, which is useful for prevention and therapy of fungal infections of mammals as antifungal agent.
Decarboxylative C–N Coupling of 2,2-Difluorobicyclo[1.1.1]pentane (BCP-F<sub>2</sub>) Building Blocks
作者:Xiaoshen Ma、Joanna L. Chen、Bryce E. Gaskins
DOI:10.1021/acs.orglett.4c00307
日期:2024.3.8
Described herein is our effort toward achieving the decarboxylative functionalization of 2,2-difluorobicyclo[1.1.1]pentane (BCP-F2) building blocks. When compared with the nonfluorinated bicyclo[1.1.1]pentane (BCP) analogues, we discovered divergent reactivities. This is the first successful decarboxylative coupling of BCP-F2 building blocks reported via the photoredox mechanism.
Based on the structure of the active site of cytochrome P450 14 alpha-demethylase (CYP51) and the conclusions of the structure-activity relationships of azole antifungals, a series of 1-(2-(2,4-difluorophenyl)-2-hydroxy-3-(1H-1,2,4-triazol-1-yl)propyl)-1H-1,2,4-triazol-5(4H)-one of fluconazole analogs was synthesized. All compounds were characterized by IR, HRMS, (HNMR)-H-1 and C-13 NMR spectroscopic analysis. Results of preliminary antifungal in vitro test using eight human pathogenic species showed that some compounds displayed comparable or even better antifungal activities than reference drug fluconazole and that compound 3i exhibited significant activity against Candida albicans being worthy of further optimization. (C) 2011 Elsevier Masson SAS. All rights reserved.