4-Hydroxy-2-pyrone derivatives of formula (I):
(wherein A represents an alkylene group which is optionally alkyl-substituted or an alkenylene group, and Z represents a substituted or unsubstituted aryl or aryloxy group) may be prepared by cyclizing an ester of formula (II):
(wherein A and Z are as defined above and R represents an organic group) and have valuable antilipaemic activities.
式(I)的
4-羟基-2-
吡喃酮衍
生物:
(其中 A 代表任选被烷基取代的亚烷基或烯基,Z 代表取代或未取代的芳基或芳氧基)可通过环化式(II)的酯来制备:
(其中 A 和 Z 如上定义,R 代表有机基团),具有重要的抗血脂生成活性。