[EN] PROCESS AND INTERMEDIATES FOR PREPARING INDANYLOXYDIHYDROBENZOFURANYL ACETIC ACID DERIVATIVES AS GPR40 AGONISTS<br/>[FR] PROCÉDÉ ET INTERMÉDIAIRES POUR LA PRÉPARATION DE DÉRIVÉS D'ACIDE INDANYLOXYDIHYDROBENZOFURANYLACÉTIQUE EN TANT QU'AGONISTES DE GPR40
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2015044073A1
公开(公告)日:2015-04-02
The present invention relates to compounds of formula (I) werein Rs denotes F or CF3, Ra denotes H or C1-4-alkyl and Z denotes a leaving group or an optionally substituted or protected hydroxyl group, suitable as intermediates in the synthesis of indanyloxydihydrobenzofuranylacetic acids, which are GPR40 agonists, to a process for preparing these intermediates and to the process for preparing said GPR40 agonists making use of an asymmetric catalytic hydrogenation reaction in the presence of a transition metal catalyst and a chiral auxiliary.
本发明涉及式(I)化合物,其中Rs表示F或CF3,Ra表示H或C1-4-烷基,Z表示离去基团或可选的取代或保护羟基团,适用于合成吲哚氧基二氢苯并呋喃乙酸,其为GPR40激动剂的中间体,以及制备这些中间体的过程和利用手性辅助剂和过渡金属催化剂进行不对称催化氢化反应制备所述GPR40激动剂的过程。