HETEROCYCLIC COMPOUND HAVING AZOLE GROUP

A heterocyclic compound represented by general formula (I) [wherein R1 represents an optionally protected amino group, or an optionally substituted C1-6 alkyl group; R2 and R3 independently represent a C1-2 alkyl group; X represents a hydrogen atom, or a halogen atom; Z1 represents C-R4 (wherein R4 represents a hydrogen atom, a halogen atom, an optionally protected amino group, or a C1-6 alkylsulfonyl group), or N; Z2 represents C-R5 (wherein, R5 represents a hydrogen atom, a hydrogen atom, a halogen atom, an optionally protected amino group, or a C1-6 alkylsulfonyl group), or N; Z3 represents C-R6 (wherein R6 represents a hydrogen atom, a hydrogen atom, a halogen atom, an optionally protected amino group, or a C1-6 alkylsulfonyl group ), or N; Z4 represents C-R7 (wherein, R7 represents a hydrogen atom, a hydrogen atom, a halogen atom, an optionally protected amino group, or a C1-6 alkylsulfonyl group), or N; Z represents CH or N; and A represents a methylene group, or a bond] or a salt thereof, which has an excellent anti-HIV activity and is therefore useful as an anti-HIV agent.