Naphthyloxyacetic acid derivatives and their use as PGW2 agonists and antagonists

摘要

Naphthyloxyacetic acid derivatives of the formula (I) wherein R<1> is H, alkyl, alkylene-(-COOH<10>, -OH, -CONR<4>R<5>, -CONR<6>-alkylene-OH, -NR<4>R<5>, -cyano or -tetrazolyl); A is single bond, alkylene, alkenylene, -S-alkylene, -O-alkylene; B is NR<3>CO, CONR<3>; and R<2> is (1) alkyl, (2) alkenyl, (3) alkyl or alkenyl substituted by 1-3 of phenyl, cycloalkyl, naphthyl and heterocyclic ring containing nitrogen atom (said ring being substituted by 1-3 of alkyl, alkoxy and halogen etc.), (4) NR<7>R<8> or (5) alkylene-NR<7>R<8>; and non-toxic salts and hydrates thereof can bind with the PGE2 receptor and are useful as PGE2 antagonists or agonists.