abstract |
A compound represented by the formula: n n nwherein R 1 is a 5- or 6-membered ring; R 3 is a hydrogen atom, a lower alkyl group or a lower alkoxy group; R 7 and R 8 are each a hydrogen atom or a lower alkyl group; Z 1 is another 5- or 6-membered aromatic ring; Z 2 is a group represented by -Z 2a -W 1 -Z 2b - [wherein Z 2a and Z 2b are each O, S(O) m (wherein m is 0, 1 or 2), an imino group or a bond, and W 1 is an alkylene chain]; X is CR (wherein R is a hydrogen atom, a lower alkyl group, a lower alkoxy group, an acyl group, or R and adjacent R 4 may form a 5- or 6-membered alicyclic heterocyclic group) or N; R 4 is NR 5 R 6 (wherein R 5 and R 6 are each a hydrogen atom, a hydrocarbon group, a heterocyclic group or an acyl group), or R 5 and R 6 are bonded to each other to form a heterocyclic group of NR 5 R 6 ; and R 2 is (1) an amino group which may be a quaternary ammonium or oxide, (2) a nitrogen-containing heterocyclic group which may contain a sulfur atom or an oxygen atom as the ring-constituting atom, in which the nitrogen atom may be converted to a quaternary ammonium or an oxide, or the like; nor a salt thereof. The compound has excellent CCR5 antagonistic activity and thus is useful as a prophylactic and/or therapeutic medicine for HIV infection into human peripheral blood monocyte, especially for AIDS. |