A compound of the formula (I)wherein R represents a straight or branched, primary or secondary acyclic hydrocarbyl C3–C15 group, which can be saturated or unsaturated, or a straight or branched, primary or secondary acyclic hydrocarbyl C3–C15 group, which can be saturated or unsaturated and wherein one or more of hydrogen atoms is replaced with fluorine atom; X represents hydrogen atom or halogen atom,and* denotes chiral center, and salts thereof. The compound is useful for the treatment of diseases mediated by GPR40, in particular type II diabetes. (I)
式(I)的化合物,其中R代表直链或支链、一次或二次脂肪族C3-C15基团,可以是饱和或不饱和,或者直链或支链、一次或二次脂肪族C3-C15基团,可以是饱和或不饱和,其中一个或多个氢原子被
氟原子取代;X代表氢原子或卤素原子,*表示手性中心,以及其盐。该化合物对于治疗由GPR40介导的疾病,特别是II型糖尿病,具有用处。