[EN] PROCESS FOR THE MANUFACTURE OF PHENYLACETIC ACID DERIVATIVES<br/>[FR] PROCEDE DE PRODUCTION DE DERIVES D'ACIDE PHENYLACETIQUE
申请人:HOFFMANN LA ROCHE
公开号:WO2002079134A1
公开(公告)日:2002-10-10
The present invention relates to a process for the manufacture of compounds of general formula (I), wherein R2a, R2b are, independently from each other, hydrogen; halogen; lower alkoxy; cyano; -COOH; lower alkoxycarbonyl; or lower alkyl, optionally substituted by halogen; and R3a, R3b are, independently from each other, hydrogen; lower alkyl; lower cycloalkyl or, if taken together, -(CH¿2?)n with n=2,3 or 5. The compounds of formula (I) are valuable intermediates for the manufacture of therapeutically active compounds such as 2-(3,5-bis-trifluoromethyl-phenyl)-N-methyl-N-(6-morpholin-4-yl-4-o-tolyl-pyridin-3-yl)-isobutyramide and 2-(3,5-bis-trifluoromethyl-phenyl)-N-methyl-N-(2-morpholin-4-yl-4-o-tolyloxy-pyrimidin-5-yl)-isobutyramide.
本发明涉及一种制备通式(I)化合物的方法,其中R2a,R2b独立地为氢; 卤素; 低烷氧基; 腈; -COOH; 低烷氧羰基; 或低烷基,可选择地被卤素取代; 而R3a,R3b独立地为氢; 低烷基; 低环烷基或,如果一起取,为-(CH¿2?)n,其中n = 2,3或5。通式(I)化合物是制备具有治疗活性化合物的有价值的中间体,例如2-(3,5-双三氟甲基苯基)-N-甲基-N-(6-吗啉-4-基-4-对甲苯基吡啶-3-基)-异丁酰胺和2-(3,5-双三氟甲基苯基)-N-甲基-N-(2-吗啉-4-基-4-对甲苯氧基嘧啶-5-基)-异丁酰胺的制备。