Compounds of formula IA or IB are provided where X
1
, X
2
and X
3
are independently selected from H or hydroxy protecting groups and R
1
is selected from straight or branched chain alkyl groups having from 1 to 8 carbon atoms; straight or branched chain alkenyl groups having from 2 to 8 carbon atoms; straight or branched chain hydroxy-substituted alkyl groups having from 1 to 8 carbon atoms; straight and branched chain hydroxy-substituted alkenyl groups having from 2 to 8 carbon atoms. Such compounds are used in preparing pharmaceutical compositions and are useful in treating a variety of biological conditions.
提供了公式IA或IB的化合物,其中X1、X2和X3分别选自H或羟基保护基团,R1选自具有1至8个碳原子的直链或支链烷基基团;具有2至8个碳原子的直链或支链烯基基团;具有1至8个碳原子的直链或支链羟基取代烷基基团;以及具有2至8个碳原子的直链和支链羟基取代烯基基团。这些化合物用于制备药物组合物,并可用于治疗各种
生物条件。