| abstract |
The present invention provides an integrase inhibitor. The inventors have have found the following compound of formula (I) possessing an integrase inhibitory activity. (wherein, R<C> and R<D > taken together with the neighboring carbon atoms form a ring which may be a condensed ring, Y is hydroxy, mercapto or amino; Z is O, S or NH; R<A>is a group shown by (wherein, C ring is N-containing aromatic heterocycle) or the like). |