| abstract |
The present invention provides a compound represented by the formula (I): wherein R1 represents a hydrogen atom, a halogen atom or a C1-C6 alkyl group which may have one or more halogen atoms, A1 represents a divalent connecting group, X1 represents a C2-C36 heterocyclic group and one or more -CH2- in the C2-C36 heterocyclic group can be replaced by -CO- or -O-, R2 is independently in each occurrence a halogen atom, a hydroxyl group, a C1-C24 hydrocarbon group, a C1-C12 alkoxy group, a C2-C4 acyl group or a C2-C4 acyloxy group, and m represents an integer of 0 to 10. |