Patent ID: 7132569
Filing Date: 2006-11-07
Classification: C07C,C07D

Abstract:
1. A compound of formula II wherein R 1 and R 2 are independently of one another H, C 1 –C 6 alkyl, C 1 –C 6 halogenalkyl, C 1 –C 6 alkyloxy, C 1 –C 6 alkoxy-C 1 –C 6 alkyl or C 1 –C 6 alkoxy-C 1 –C 6 alkyloxy, R 3 is C 1 –C 6 alkyl, R 4 is C 1 –C 6 alkyl, R 6 is C 1 –C 6 alkyl, and R 7 is C 1 –C 6 alkyl or C 1 –C 6 alkoxy, or R 6 and R 7 together are tetramethylene, pentamethylene, 3-oxa-1,5-pentylene or —CH 2 CH 2 O—C(O)— optionally substituted with C 1 –C 4 alkyl, phenyl or benzyl.