作者:Patrick H. Beusker、Harald Veldhuis、Bianca A.C. van den Bossche、Hans W. Scheeren
DOI:10.1002/1099-0690(200105)2001:9<1761::aid-ejoc1761>3.0.co;2-o
日期:2001.5
Two new 5,7-dideoxypaclitaxel derivatives with flexible C-rings have been prepared starting from Taxine B, an alkaloid isolated from the leaves of Taxus baccata. Both derivatives lack the oxetane ring present in the antitumor agent paclitaxel, but possess an oxygenated 4β-substituent as a substitute for the oxetane ring oxygen atom. These derivatives provide additional information about the importance
从紫杉碱B(一种从红豆杉叶中分离出来的生物碱)开始,已经制备了两个带有柔性C环的新的5,7-二脱氧紫杉醇衍生物。两种衍生物都缺乏抗肿瘤剂紫杉醇中存在的氧杂环丁烷环,但是具有氧化的4β-取代基作为氧杂环丁烷环中氧原子的替代物。这些衍生物提供了有关该氧原子对细胞毒性活性的重要性的其他信息。