A novel optically active erythro-1-alkanoyloxy-2,4-O-isopropylidene-2,4-dihydroxy-5-substituted pentane expressed by the formula
wherein R¹ represents a halogen atom or cyano group and R² represents an alkyl group of 1 to 6 carbon atoms, and a process for producing the above compound are provided, the compound being preferably usable as an intermediate for preparing a HMG-CoA reductase inhibitor and the process being practiced under mild conditions and with a high yield.
一种新型光学活性赤式-1-烷酰
氧基-
2,4-O-异亚丙基-
2,4-二羟基-5-取代
戊烷,其表达式为
其中 R¹ 代表卤素原子或
氰基,R² 代表 1 至 6 个
碳原子的烷基,本发明提供了一种新型光学活性红-1-烷酰
氧基-
2,4-O-异亚丙基-
2,4-二羟基-5-取代
戊烷,以及生产上述化合物的工艺,该化合物最好可用作制备
HMG-CoA 还原酶
抑制剂的
中间体,且该工艺在温和条件下实施,收率高。