Design, synthesis and anticancer activity evaluation of novel C14 heterocycle substituted epi-triptolide
摘要:
Two series of novel C14 heterocycle substituted epi-triptolide derivatives as potential anticancer agents were synthesized and tested for their cytotoxicity against SKOV-3 and PC-3 tumor cell lines. The introduction of C14 beta-aryl heterocycle aminomethyl substituent to the leading compound was found to be an effective modification method to retain the potent anticancer activity. Meanwhile, the series of epitriptolide derivatives (21-40) with C14 alpha-hydroxyl group, still retained the natural product's cytotoxicity. This is apparently challenges the classical structure activity relationship of triptolide that considers the C14 beta-hydroxyl group to be essential for its anticancer activity. (C) 2013 Elsevier Masson SAS. All rights reserved.