Patent ID: 7790897

Claim:
A compound of formula I n is 2, R 1 is unsubstituted or C 1 -C 4 alkyl-substituted C 2 -C 18 alkylene, or C 2 -C 18 alkylene interrupted by oxygen or by sulfur; R 2 is R 8 —R 9 —S(O) m —R 10 —, R 3 and R 4 are hydrogen or methyl R 5 is hydrogen or methyl, R 6 is hydrogen or methyl, R 7 is hydrogen, C 1 -C 8 alkyl, O., hydroxy, —CH 2 CN, C 1 -C 18 alkoxy, C 5 -C 12 cycloalkoxy, C 3 -C 6 alkenyl, C 7 -C 9 phenylalkyl unsubstituted or substituted on the phenyl by 1, 2 or 3 C 1 -C 4 alkyl; R 8 is C 1 -C 18 alkyl, cyano substituted C 1 -C 8 alkyl; or C 5 -C 8 cycloalkyl, R 9 is a direct bond or wherein R 12 is attached to sulfur, R 10 is C 2 -C 18 alkylene, C 2 -C 18 alkylene interrupted by oxygen or by sulfur; or R 11 is C 1 -C 18 alkyl, phenyl or C 3 -C 17 alkenyl, R 12 is C 1 -C 8 alkylene, R 13 is C 1 -C 4 alkylene, R 14 is C 1 -C 4 alkylene, R 15 is hydrogen, C 2 -C 18 alkanoyl or benzoyl and m is 0, 1 or 2.