The invention relates to cis- and trans-12,13-cyclopropyl and 12,13-cyclobutyl epothilones of formula I to IV
wherein Ar is a radical represented by the following structure:
and the other radicals and symbols have the meanings as defined herein; to their chemical synthesis and biological evaluation; their use in the treatment of neoplastic diseases and to pharmaceutical preparations containing such compounds. The compounds described herein are potent tubulin polymerization promoters and cytotoxic agents.
本发明涉及式 I 至 IV 的顺式和反式-12,13-环丙基和 12,13-环丁基表噻吩酮
其中 Ar 是由以下结构表示的自由基:
以及其他基团和符号的含义如本文所定义;它们的化学合成和生物学评价;它们在治疗肿瘤性疾病中的用途以及含有这些化合物的药物制剂。本文所述化合物是强效的微管蛋白聚合促进剂和细胞毒剂。