The present invention relates to a novel and efficient process for the preparation of 8-hydroxybicyclo[7.3.1]tridec-4-ene-2,6-diyne ring system which is part of the aglycone of esperemicin and to novel cytotoxic antitumor agents having said bicyclic ring system. The present invention also provides a method for treating mammalian malignant tumors by administering to an animal in need of such treatment an antitumor effective amount of a compound of the present invention.
本发明涉及一种新的高效制备esperemicin中的8-羟基双环[7.3.1]十
三烯-4-炔-2,6-二炔环系统的方法,并提供了具有该双环环系统的新型细胞毒性
抗肿瘤药物。本发明还提供了一种通过向需要该治疗的动物施用本发明化合物的抗肿瘤有效量来治疗哺乳动物恶性肿瘤的方法。