To provide novel steroid derivatives having an antitumor action which can be synthesized efficiently and stereoselectively by means of synthetic organic chemistry.
A steroid derivative represented by the formula:
wherein R is an alkyl group having 1 to 13 carbon atoms, A is a hydroxyl group or a group easily hydrolyzable to a hydroxyl group, X and Y together form an oxo group or an alkylenedioxy group having 2 or 3 carbon atoms, X is a hydroxyl group, an alkoxy group having 1 to 5 carbon atoms or a group easily hydrolyzable to a hydroxyl group, Y is a hydrogen atom or an alkoxy group having 1 to 5 carbon atoms, with the proviso that when X is a hydroxyl group or a group easily hydrolyzable to a hydroxyl group, Y is a hydrogen atom, and when X is an alkoxy group having 1 to 5 carbon atoms, Y is an alkoxy group having 1 to 5 carbon atoms, or a salt thereof.
提供具有抗肿瘤作用的新型类
固醇衍
生物,该衍
生物可通过合成有机
化学方法高效、立体选择性地合成。
一种甾类衍
生物由式表示:
其中 R 是具有 1 至 13 个碳原子的烷基,A 是羟基或易
水解为羟基的基团,X 和 Y 共同形成一个氧代基团或具有 2 或 3 个碳原子的亚烷基二氧基团,X 是羟基、具有 1 至 5 个碳原子的烷氧基或易
水解为羟基的基团、Y 是氢原子或具有 1 至 5 个碳原子的烷氧基,但当 X 是羟基或易
水解为羟基的基团时,Y 是氢原子;当 X 是具有 1 至 5 个碳原子的烷氧基时,Y 是具有 1 至 5 个碳原子的烷氧基或其盐。