The invention relates to cis- and trans-12, 13-cyclopropyl and 12,13-cyclobutyl epothilones of formula I to IV
1
wherein Ar is a radical represented by the following structure:
2
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.
这项发明涉及公式I至IV1中的顺式和反式12,13-环丙基和12,13-
环丁基环丙素,其中Ar是由以下结构表示的基团:2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
生物评价;它们在治疗肿瘤性疾病中的用途以及含有这类化合物的药物制剂。本文描述的化合物是有效的微管聚合
促进剂和细胞毒性剂。