Compounds of the formula: ##STR1## wherein X is H, F, Cl, or CH.sub.3 and Y is ##STR2## wherein R.sub.1 is H, alkyl of 1-5 carbon atoms, phenyl, or benzyl; R.sub.2 is COOR.sub.6, R.sub.5 COOR.sub.6, or R.sub.5 CONHR.sub.6 ; R.sub.3 is H, F, OH, or CH.sub.3 ; R.sub.4 is CH.sub.2 OH, CH.sub.2 OCOR.sub.6, COOR.sub.6, or CONHR.sub.6 ; R.sub.5 is alkyl of 1-3 carbon atoms; R.sub.6 is alkyl of 1-5 carbon atoms, or benzyl; represents a single or double bond; .about. represents .alpha.-position, .beta.-position, or a mixture of both .alpha.- and .beta.-positions; and -- represents .alpha.-position; and methods for preparing the same.
化合物的
化学式为:##
STR1## 其中 X 为 H、F、Cl 或 CH.sub.3,Y 为 ##
STR2## 其中 R.sub.1 为 H、1-5
碳原子的烷基、
苯基或
苄基;R.sub.2 为 COOR.sub.6、R.sub.5 COOR.sub.6 或 R.sub.5 CONHR.sub.6;R.sub.3 为 H、F、OH 或 CH.sub.3;R.sub.4 为 CH.sub.2 OH、CH.sub.2 OCOR.sub.6、COOR.sub.6 或 CONHR.sub.6;R.sub.5 为 1-3
碳原子的烷基;R.sub.6 为 1-5
碳原子的烷基或
苄基;表示单键或双键;.about. 代表 .alpha.-位置、.beta.-位置或 .alpha.- 和 .beta.-位置的混合;-- 代表 .alpha.-位置;以及制备它们的方法。