Patent ID: 8173351

Claim:
A compound shown by the following formula (1), wherein Rs individually represent a hydrogen atom or an acid-dissociable group having a substituted or unsubstituted cyclic structure, provided that at least one of the Rs is an acid-dissociable group having a substituted or unsubstituted cyclic structure; Xs individually represent a substituted or unsubstituted alkylene group having 1 to 8 carbon atoms; Ys individually represent a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 10 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 10 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 10 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 10 carbon atoms, or a substituted or unsubstituted phenoxy group; and qs are individually 0 or 1, and wherein the acid-dissociable group is a group shown by the following formula (2-1) or (2-2), wherein, in the formula (2-1), R 1 represents a substituted or unsubstituted cycloalkyl group having 6 to 20 carbon atoms which may contain a hetero atom and n is an integer of 1 to 3, and in the formula (2-2), R 2 represents a substituted or unsubstituted cycloalkyl group having 6 to 20 carbon atoms which may contain a hetero atom and R 3 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms.