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.
提供了公式为IA或IB的化合物,其中X1、X2和X3独立地选自H或羟基保护基团,R1选自直链或支链烷基,其碳原子数为1至8;直链或支链烯基,其碳原子数为2至8;直链或支链羟基取代的烷基,其碳原子数为1至8;直链和支链羟基取代的烯基,其碳原子数为2至8。这些化合物用于制备药物组合物,并且在治疗各种
生物条件方面非常有用。