The present invention is directed to novel taxanes useful as chemotherapeutic agents or their precursors. Processes for preparing the novel taxanes include coupling reactions, in the presence of a base, of baccatin of formula (III) or (IV) ##STR1## with .beta.-lactams of formula (V). ##STR2## The invention also provides pharmaceutical compositions including the novel taxanes and method for treatment of certain cancers with these new compounds.
本发明涉及作为化疗药物或其前体有用的新型
紫杉醇。制备这些新型
紫杉醇的过程包括在碱的存在下,将
化学式(III)或(IV)的
紫杉醇与
化学式(V)的β-内酰胺进行偶联反应。该发明还提供了包括这些新型
紫杉醇的药物组合物,并使用这些新化合物治疗某些癌症的方法。