Novel cis compound having the formula: ##STR1## wherein R.sup.1 is alkyl, haloalkyl, cycloalkyl, aryl or a carbohydrate derivative; X is O, N, S, C(O)O or a direct bond; and R.sup.2 is aryl, substituted aryl or heteroaryl are useful in the synthesis of taxol and taxol derivatives.
具有以下结构式的新型顺式化合物:##STR1## 其中R.sup.1是烷基,卤代烷基,环烷基,芳基或
碳水化合物衍
生物; X是O,N,S,C(O)O或直接键; R.sup.2是芳基,取代芳基或杂环芳基,可用于
紫杉醇和
紫杉醇衍
生物的合成。