The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1998
Filed:
Dec. 18, 1995
Ono Pharmaceutical Co., Ltd., Osaka, JP;
Abstract
A naphthyloxyacetic acid derivative of the formula (I) ##STR1## wherein R.sup.1 is H, alkyl, alkylene-(--COOR.sup.10, --OH, --CONR.sup.4 R.sup.5, --CONR.sup.6 -alkylene-OH, --NR.sup.4 R.sup.5, -cyano or -tetrazolyl); A is single bond, alkylene, alkenylene, --S-alkylene, --O-alkylene; B is NR.sup.3 CO, CONR.sup.3 ; R.sup.2 is (1) alkyl (2) alkenyl, (3) alkyl or alkenyl substituted by 1-3 of phenyl, cycloalkyl, naphthyl and heterocyclic ring containing nitrogen atom (the said ring may be substituted by 1-3 of alkyl, alkoxy and halogen etc.), (4) NR.sup.7 R.sup.8 or (5) alkylene-NR.sup.7 R.sup.8 ; non-toxic salt thereof, non-toxic acid addition salt thereof and hydrate thereof can bind the PGE.sub.2 receptor and exhibits the activity to antagonize or agonize for PGE.sub.2, therefore, they are useful as PGE.sub.2 antagonist or PGE.sub.2 agonist.