Patent ID: 6057330
Filing Date: 2000-05-02
Classification: A61P,C07D

Abstract:
A pyrazolopyrimidine compound represented by the following general formula (A): ##STR17## wherein Y represents a hydroxyl group or a halogen atom, Z represents a hydroxyl group or a halogen atom, R.sup.2h represents a hydrogen or halogen atom, a hydroxyl group, an alkyl group which may be substituted, an amino group which may be substituted, a carboxyl group, an alkoxycarbonyl group, a carbamoyl group, or an alkylcarbamoyl group, and R.sup.3a represents a hydrogen atom, a nitro group, an amino group, a nitrogen-containing heterocyclic group, an alkylsulfonylamino group which may be substituted by halogen, R.sup.4 CONH-- (in which R.sup.4 represents an alkyl, halogenoalkyl, carboxyl or alkoxycarbonyl group), or R.sup.5 CO-- (in which R.sup.5 represents an amino, hydroxyl, alkyl, alkoxy, halogenoalkyl or heterocycle-amino group), with the proviso that R.sup.2h is neither a lower alkyl group nor a cycloalkyl group when R.sup.3a is a hydrogen atom, R.sup.2h is not a hydroxyl group when Y and Z are halogen atoms, or R.sup.2h is not a halogen atom when Y and Z are hydroxyl groups, or a tautomer or salt thereof.