Patent ID: 6184386
Filing Date: 2001-02-06
Classification: C07D

Abstract:
A compound represented by following formula (I): ##STR23##wherein R.sub.1 represents an alkyl group, an alkylthio group, an acylamino group, or a ureido group; R.sub.2 and R.sub.3 each represents a hydrogen atom or a group capable of being substituted; A and B each represents a hydrogen atom or a group which can be removed with an alkali; --(time).sub.m --PUG is released from an oxidation product of the compound of formula (I), and ""time"" represents a group releasing PUG after --(time).sub.m --PUG is released from an oxidation product of the compound of formula (I); m represents 0 or 1; and PUG represents a group represented by following formula (II): ##STR24##wherein n represents 1; L represents a methylene group, an ethylene group, or a propylene group; Y represents a hydrogen atom, a carbamoyl group, or an alkoxycarbonyl group; and X represents a hydrogen atom, a methyl group, an ethyl group, a carboxyl group, an alkoxycarbonyl group, a cyano group, or a carbamoyl group.