Aliphatic ethers and esters of 1-(2,4-dichlorophenyl)-2-(1H-imidazolyl) ethanol: study of antifungal activity against yeasts and hydrophobic character
摘要:
Aliphatic ethers 2 and esters 3, which are closely related to antifungal azoles, were synthesized and tested against various strains of Candida. We found that their activity was strongly related to the length of the chains; the best activity was obtained with a C-6 chain for ethers and C-5 or C-6 chains for esters (including the carbonyl group), whereas shorter or longer alkyl chains decreased antifungal efficiency. The biological activity of such compounds could be related to their ability to bind with the lipophilic area near the active site of enzymatic target. The lipophilic character increases with the length of chain, following a linear variation. Thus, even if the activity depends on the lipophilic influence, this particular property is not sufficient to totally explain the antifungal efficiency.
Aliphatic ethers 2 and esters 3, which are closely related to antifungal azoles, were synthesized and tested against various strains of Candida. We found that their activity was strongly related to the length of the chains; the best activity was obtained with a C-6 chain for ethers and C-5 or C-6 chains for esters (including the carbonyl group), whereas shorter or longer alkyl chains decreased antifungal efficiency. The biological activity of such compounds could be related to their ability to bind with the lipophilic area near the active site of enzymatic target. The lipophilic character increases with the length of chain, following a linear variation. Thus, even if the activity depends on the lipophilic influence, this particular property is not sufficient to totally explain the antifungal efficiency.
1-Phenethylimidazoles
申请人:Syntex (U.S.A.) Inc.
公开号:US04038409A1
公开(公告)日:1977-07-26
Novel 1-phenethylimidazoles substituted at the position .beta. to the imidazole ring by an optionally substituted hydrocarbyl ester, thioester, or dithioester are useful as antimicrobial agents and as intermediates in the preparation of novel 1-phenethylimidazoles substituted at the position .beta. to the imidazole with a mercapto. Both the former and latter compounds are useful as intermediates in the preparation of certain 1-[.beta.-(R-thio)phenethyl] imidazoles.