Patent ID: 8133997
Filing Date: 2012-03-13
Classification: C07D,C09B

Abstract:
1. A compound of formula (II) where the two monomeric units are linked either via R 3 or via R 4 ; the ring A is a six-membered heteroaromatic ring of structure A1 where the ring A1 is unsubstituted, C 1 -C 4 -alkyl or phenyl substituted fused with a benzene ring or a combination thereof, one of R the other one of R or where the NR 4 group combines with the A ring to form a 6-membered heterocycle optionally fused with a benzene ring, and R 3 is an unsubstituted phenylene or a phenylene substituted by one or more of alkyl-, alkoxy- or halogen-substitutions; and R is C 1 -C 4 -alkyl or phenyl.