Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Naphthalene derivatives
 ##STR1## A compound of formula (I), wherein R.sup.1 is carboxy or protected carboxy, R.sup.2 and R.sup.3 are each independently hydrogen, hydroxy, or protected hydroxy, R.sup.4 is hydrogen or halogen, R.sup.5 is aryl substituted with halogen, amino, hydroxy or protected hydroxy, R.sup.6 is aryl optionally substituted with halogen, amino, hydroxy or protected hydroxy, A.sup.1 and A.sup.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. 
Fujisawa Pharmaceutical Co., Ltd.
C C
C07C C07C
additional inventional
Kouji Toshifumi Hiromichi Akira
Hattori Shiraga Itani Tanaka