Synthesis and antitubercular activity of quaternized promazine and promethazine derivatives
作者:Aaron B. Bate、Jay H. Kalin、Eric M. Fooksman、Erica L. Amorose、Cristofer M. Price、Heather M. Williams、Michael J. Rodig、Miguel O. Mitchell、Sang Hyun Cho、Yuehong Wang、Scott G. Franzblau
DOI:10.1016/j.bmcl.2006.11.091
日期:2007.3
Quaternized chlorpromazine, triflupromazine, and promethazine derivatives were synthesized and examined as antitubercular agents against both actively growing and non-replicating Mycohacterium tuberculosis H37Rv. Impressively, several compounds inhibited non-replicating M. tuberculosis at concentrations equal to or double their MICs against the actively growing strain. All active compounds were non-toxic toward Vero cells (IC50 > 128 mu M). N-Allylchlorpromazinium bromide was only weakly antitubercular, but replacing allyl with benzyl or substituted benzyl improved potency. An electron-withdrawing substituent on the phenothiazine ring was also essential. Branching at the carbon chain decreased antitubercular activity. The optimum antitubercular structures possessed N-(4- or 3-chlorobenzyl) substitution on triflupromazine. (c) 2006 Elsevier Ltd. All rights reserved.