Patent ID: 8148571

Claim:
A compound (I) represented by formula (1): wherein R 1 , R 2 and R 3 each independently are a hydrogen atom, a cyano group, a hydrocarbon group having 1 to 20 carbon atoms, or a substituted hydrocarbon group having 1 to 20 carbon atoms; A is —CONH— or —COO—; B is one selected from the group consisting of —CONH—, —NHCO—, —COO— and —OCO—; m is an integer of from 1 to 3; n is an integer of from 1 to 3; R 4 is an organic group having 1 to 40 carbon atoms or a substituted organic group having 1 to 40 carbon atoms; R 5 is a hydrocarbon group having 1 to 20 carbon atoms or a substituted hydrocarbon group having 1 to 20 carbon atoms; R 6 and R 7 each independently are a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a substituted hydrocarbon group having 1 to 20 carbon atoms, or a metal atom.