Patent ID: 8178669
Filing Date: 2012-05-15
Classification: C07F,G01N

Abstract:
1. A compound represented by the following general formula (I) or a salt thereof: wherein R 1 , R 3 , R 6 and R 8 independently represent a hydrogen atom, a C 1-8 alkyl group which may be substituted, an aryl group which may be substituted, a vinyl group which may be substituted, a thienyl group which may be substituted, or a pyrrolyl group which may be substituted, or represent an electron withdrawing group selected from a cyano group, a carboxy group, and an alkyloxycarbonyl group which may be substituted, R 2 and R 7 each represent a cyano group, R 4 and R 5 independently represent a halogen atom, a C 1-8 alkyl group which may be substituted, or a C 1-8 alkoxy group which may be substituted, and X represents a group represented by the following formula (A): wherein R 11 , R 12 , R 13 , R 14 and R 15 independently represent a hydrogen atom, a C 1-8 alkyl group which may be substituted, a C 1-8 alkoxy group which may be substituted, a hydroxy group, an amino group, wherein the amino group comprises a primary, secondary or tertiary amino group, a thiol group or a selenol group, provided that 2 to 3 groups among R 11 , R 12 , R 13 , R 14 and R 15 represent a C 1-8 alkoxy group which may be substituted, a hydroxy group, an amino group, wherein the amino group comprises a primary, secondary or tertiary amino group, a thiol group or a selenol group, but all the groups do not simultaneously represent a C 1-8 alkoxy group which may be substituted, wherein the compound represented by the formula (I) or a salt thereof is non-fluorescent before reacting with peroxynitrite, and the compound represented by the formula (I) or a salt thereof is fluorescent when the group represented by the formula (A) is nitrated after reacting with peroxynitrite.