Patent ID: 8350096

Claim:
A compound represented by the following formula 1: wherein each R 1 is an acid-dissociating group selected from the group consisting of substituted methyl groups, 1-substituted ethyl groups, 1-substituted n-propyl groups, 1-branched alkyl groups, silyl groups, acyl groups, 1-substituted alkoxymethyl groups, cyclic ether groups and alkoxycarbonyl groups, and two or more R 1 may be the same or different; each R 2A is a group selected from the group consisting of halogen atom, alkyl group, cycloalkyl group, aryl group, aralkyl group, alkoxy group, aryloxy group, alkenyl group, acyl group, alkoxycarbonyl group, alkyloyloxy group, aryloyloxy group, cyano group, and nitro group, and two or more R 2A may be the same or different; each of R 3 and R 7 is a hydrogen atom or alkyl group having 1 to 6 carbon atoms; R 4A is a divalent group having 10 to 28 carbon atoms which includes a biphenyl structure, terphenyl structure, naphthalene structure, phenanthrene structure, or pyrene structure, or R 4A together with R 3 and R 7 optionally represents a tetravalent group having 10 to 28 carbon atoms which includes a fluorine structure or benzophenone structure; and each of k0, j0, m0, and n0 is an integer of 0 to 3; each of k1, j1, m1, and n1 is an integer of 0 to 3; and each of k2, j2, m2, and n2 is an integer of 0 to 4, satisfying 1≦k0+k1+k2≦5, 1≦j0+j1+j2≦5, 1≦m0+m1+m2≦5, 1≦n0+n1+n2≦5, 1≦k1+j1+m1+n1≦12, 1≦k0+k1≦3, 1≦j0+j1≦3, 1≦m0+m1≦3, and 1≦n0+n1≦3.