IMIDAZOPYRIMIDINE DERIVATIVES AND TRIAZOLOPYRIMIDINE DERIVATIVES

摘要

A compound of the formula (I) wherein R<1> is -X-R<4>, an optionally substituted heterocyclic residue, an optionally substituted carbocyclic residue or optionally substituted condensed ring moiety; X is CR<5>R<6>, O, S, SO, SO2 or NR<7>; Y is CH or N; R<2> is H, an optionally substituted C1-C10 alkyl,etc.; R<3> is an optionally substituted aryl, or an optionally substituted heteroaryl, etc.; R<4> is an optionally substituted aryl, an optionally substituted heteroaryl, etc.; R<5>, R<6>, and R<7> can be identical or different and represent H, an optionally substituted C1-C10 alkyl, etc. The compound has an excellent anti-allergic activity and the like.