Patent ID: 8242310
Filing Date: 2012-08-14
Classification: C07C

Abstract:
1. A process for preparing a compound of Formula (I): or a salt, or stereoisomer thereof, wherein R 1 and R 2 are each independently hydrogen, substituted or unsubstituted (C 1 -C 6 )alkyl, substituted or unsubstituted (C 1 -C 6 )alkoxy, (C 3 -C 18 )cycloalkyl, cyano, or (C 3 -C 18 )cycloalkyl-(C 1 -C 6 )alkoxy, comprising the steps of: (1) reacting a nitrile of Formula (III): with LiCH 2 SO 2 CH 3 , to form an enamine of Formula (IV): (2) reducing the enamine of Formula (IV) to form the compound of Formula (I) or a salt thereof.