Patent ID: 8524425

Claim:
A compound of formula I M 1 is a direct bond; M 2 and M 3 are no bond; R 1 is C 1 -C 20 alkyl; R 2 is C 1 -C 20 alkyl which C 1 -C 20 alkyl optionally contains one or more C—C multiple bonds; or R 2 is C 1 -C 20 alkyl which is substituted by C 1 -C 20 heteroaryl or or R 2 is phenyl or C 1 -C 20 heteroaryl, each of which optionally is substituted by one or more C 1 -C 12 alkyl, halogen, SR 10 or OR 11 ; or R 2 is or R 2 forms a ring with one of the C-atoms of the phenyl ring to which the group is attached, wherein said formed ring is unsubstituted or substituted; R″ 2 has one of the meanings given for R 2 ; R 3 and R 4 independently of one another are hydrogen or are R′ 1 has one of the meanings given for R 1 ; R′ 2 has one of the meanings given for R 2 ; R′ 3 , R′ 4 , R″ 3 and R″ 4 independently of one another have one of the meanings given for R 3 and R 4 ; R 5 is hydrogen; R 10 is C 1 -C 20 heteroaryl; R 11 is C 1 -C 20 alkyl which optionally is substituted by C 1 -C 20 heteroaryl; R 20 is (CO)R 1 ; R 21 is (CO)R 1 ; X is O; X 2 is a direct bond; m is an integer 1; R 22 is C 1 -C 20 alkyl; and R 23 has one of the meanings as given for R 1 , provided that (i) at least one of R 2 , R′ 2 , and R″ 2 is or (ii) at least one of R 2 , R′ 2 , R″ 2 forms a ring with one of the C-atoms of the phenyl ring to which the group is attached; or (iii) at least one of R 2 , R′ 2 , and R″ 2 is C 1 -C 20 alkyl contains one or more C—C multiple bonds; or (iv) at least one of R 2 , R′ 2 , R″ 2 , and R 11 is C 1 -C 20 alkyl which is substituted by one or more C 1 -C 20 heteroaryl, or (v) R 10 is an unsubstituted or substituted C 1 -C 20 heteroaryl; provided that at least two oxime ester groups are present in the compound of the formula I.