Rational design, synthesis, and in vivo evaluation of the antileukemic activity of six new alkylating steroidal esters
摘要:
The synthesis and the in vivo evaluation against leukemias P388 and L1210 of six new alkylating steroidal esters are described. The esteric derivatives incorporating the 17 beta-acetamido-B-lactamic steroidal skeleton exhibited increased antileukemic activity and lower toxicity, compared to the 17 beta-acetamido-7-keto analogs. Among the 17 beta-acetamido-B-lactamic steroidal esters, the most potent compound afforded four out of six cures in leukemia P388 and was measured to be almost non-toxic, producing significant low levels of toxicity. (C) 2008 Elsevier Ltd. All rights reserved.