A compound having the following formula or its salt is used as an activator for PPAR:
in which W
2
represents a bond, C(═O) or CH
2
; Z
2
represents an oxygen or sulfur atom; R
21
, R
22
and R
23
independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, a halogen atom, an alkyl group having 1 to 8 carbon atoms which is substituted with a halogen atom or the like; and R
24
and R
25
independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms or an alkyl group having 1 to 8 carbon atoms which is substituted with a halogen atom.
以下化合物或其盐被用作
PPAR的激活剂:其中W2代表一个
化学键,C(═O)或
CH2; Z2代表一个氧原子或
硫原子; R21、
R22和R23独立地代表氢原子、具有1至8个碳原子的烷基、具有1至8个碳原子的烷氧基、卤素原子、具有1至8个碳原子的烷基,该烷基被卤素原子或类似物取代; R24和R25独立地代表氢原子、具有1至8个碳原子的烷基或具有1至8个碳原子的烷基,该烷基被卤素原子取代。