Patent ID: 7465814
Filing Date: 2008-12-16
Classification: C07D,C12Q

Abstract:
1. A sulfonate compound represented by a formula (I) below, where, in the formula (I), an atomic group A-O is an atomic group that forms a fluorescent compound upon cleavage of a covalent bond between the atomic group A-O and a sulfonyl group, one or a plurality of atomic groups B—SO B is benzene ring that is substituted by one or a plurality of electron-withdrawing groups, the electron-withdrawing group is at least one selected from the group consisting of an alkyl halide group (except a monochloroalkyl group, a monobromoalkyl group and a monoiodoalkyl group), a nitro group and a cyano group, and B may be the same or different in kind in the case where the plurality of B exist, the atomic group B is at least one selected from the group consisting of: a 2,4-dinitrophenyl group; a 2-nitro-(4-trifluoromethyl)phenyl group; a 2-nitro-4-methoxyphenyl group; a 4-nitro-2-methoxyphenyl group; a 2-nitro-4-methylphenyl group; a 4-nitro-2-methylphenyl group; a 2-nitro-4,6-dimethylphenyl group; a 4-nitro-2,6-dimethylphenyl group; a 2-nitro-4-chlorophenyl group; a 4-nitro-2-chlorophenyl group; and a 2-nitro-4-isopropylphenyl group, A is a formula represented by a formula (X-1) or (X-2) below,  where, in the above formulae, each of X R R wherein a fluorescent compound formed upon cleavage of the covalent bond between the atomic group A-O and the sulfonyl group is at least one selected from the group consisting of: fluorescein and its derivatives.