申请人:HOFFMANN-LA ROCHE INC.
公开号:US20150291530A1
公开(公告)日:2015-10-15
The invention relates to a novel process for the preparation of 2-trifluoromethyl isonicotinic acid and esters of the formula I which involves a palladium catalysed carbonylation or cyanation step wherein R
1
is hydrogen or Q
1-6
-alkyl. The 2-trifluoromethyl isonicotinic acid and esters of the formula I are versatile intermediates for the preparation of active pharmaceutical and agrochemical agents such as for instance TAAR 1 agonists of the formula III.
本发明涉及一种新的制备2-三氟甲基异烟酸及式I酯的方法,其中包括钯催化的羰基化或氰化步骤,其中R1为氢或Q1-6-烷基。2-三氟甲基异烟酸及式I酯是制备活性制药和农药剂的多功能中间体,例如TAAR 1激动剂的式III。