NAPHTHALENE DERIVATIVES

摘要

A compound of formula (I), wherein R<1> is carboxy or protected carboxy, R<2> and R<3> are each independently hydrogen, hydroxy, or protected hydroxy, R<4> is hydrogen or halogen, R<5> is aryl substituted with halogen, amino, hydroxy or protected hydroxy, R<6> is aryl optionally substituted with halogen, amino, hydroxy or protected hydroxy, A<1> and A<2> are each independently lower alkylene, and (II) is (III), (IV), (V) or (VI) or its salt, process for preparing it, a pharmaceutical composition including it, and a use thereof.