作者:Timothy P. Shiau、Eric D. Turtle、Charles Francavilla、Nichole J. Alvarez、Meghan Zuck、Lisa Friedman、Donogh J.R. O’Mahony、Eddy Low、Mark B. Anderson、Ramin (Ron) Najafi、Rakesh K. Jain
DOI:10.1016/j.bmcl.2011.03.036
日期:2011.5
Antimicrobial resistance against many known therapeutics is on the rise. We examined derivatives of 3-chlorooxazolidin-2-one 1a (X = H) as antibacterial and antifungal agents. The key findings were that the activity and apparent in vitro cytotoxicity could be controlled by the substitution of charged solubilizers at the 4- and 5-positions. These changes both significantly increase the antifungal potency and decrease cytotoxicity. Particularly effective were trialkylammonium groups which led to 400- to 600-fold increases in the antifungal therapeutic index when compared to their unsubstituted counterparts. (C) 2011 Elsevier Ltd. All rights reserved.