Patent ID: 7468441

Claim:
A compound of general formula (I) or (II): where R 1 , R 2 , and R 3 each independently of one another are H; C 1-7 alkyl; C 3-12 cycloalkyl, optionally substituted by C 1-4 alkyl groups; C 4-20 cycloalkyl-alkyl, optionally substituted by C 1-4 alkyl groups; C 6-10 aryl, optionally substituted by 1-3 C 1-4 alkyl groups, —CN, HaI, OH, or C 1-10 alkoxy; C 7-15 phenylalkyl, optionally substituted by 1-3 C 1-4 alkyl groups; C 3-12 alkenyl; C 3-12 alkynyl; or aromatic or aliphatic C 3-12 acyl; R 4 , R 5 , R 6 , R 7 , R 8 and R 9 each independently of one another are H; C 1-17 alkyl; C 3-12 cycloalkyl, optionally substituted by C 1-4 alkyl groups; C 4-20 cycloalkyl-alkyl, optionally substituted by C 1-4 alkyl groups; C 6-10 aryl, optionally substituted by 1-3 C 1-4 alkyl groups; C 7-15 phenylalkyl, optionally substituted by 1-3 C 1-4 alkyl groups; C 3-17 alkenyl; C 3-12 alkynyl; C 1-12 alkoxy or OH; for formula (I) R is C 1-12 alkyl or C 3-12 alkenyl; and for formula (II) n=2-12.