Patent ID: 7501511
Filing Date: 2009-03-10
Classification: A61K,A61P,C07B,C07D,Y02A

Abstract:
1. A process for resolving a racemic compound of the formula (I): in which: R1, R2, R3 and R4 are chosen independently from the following groups: R1 and R2, on the one hand, and R3 and R4, on the other hand, can also form with the nitrogen atom a 3 to 8-membered ring optionally comprising one or more hetero atoms chosen from N, O and S and possibly being substituted by one or more of the following groups: amino, hydroxyl, thio, halogen, alkyl (C1-C5), alkoxy (C1-C5), alkylthio (C1-C5), alkylamino (C1-C5), aryl (C6-C14) oxy, aryl (C6-C14) alkoxy (C1-C5), cyano, trifluoromethyl, carboxyl, carboxymethyl or carboxyethyl; R6 is chosen from the following groups: comprising: