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:
Jan. 02, 1996
Filed:
Jan. 10, 1994
Hajime Morishima, Tokyo, JP;
Yutaka Koike, Koshigaya, JP;
Masato Nakano, Ichikawa, JP;
Shugo Atsuumi, Tokyo, JP;
Seiichi Tanaka, Tokyo, JP;
Kenji Matsuyama, Kashiwa, JP;
Banyu Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
An N-acylamino acid derivative of the formula: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.4 and R.sup.6 is hydrogen lower alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl or a monocyclic or bicyclic heterocyclic group containing from to 4 hetero atoms; each of R.sup.3 and R.sup.5 is hydrogen or lower alkyl; A is --CH(OH)--(CH.sub.2).sub.q R.sup.7 wherein R.sup.7 is hydrogen, lower alkyl, cycloalkyl, cyloalkylalkyl, aryl, aralkyl, a monocyclic or bicyclic heterocyclic group containing from to 4 hereto atoms or --E--R.sup.10 wherein E is --S(O).sub.i -- wherein i is 0, 1 or 2, oxygen, --NR.sup.11 -- wherein R.sup.11 is hydrogen, lower alkyl, cycloalkyl, cycloalkylalkyl, aryl or aralkyl, or ##STR2## wherein each of R.sup.12 and R.sup.13 is hydrogen, lower alkyl cycloalkyl, cycloalkylalkyl, aryl or aralkyl, and R.sup.10 is hydrogen, lower alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl or a monocyclic or bicyclic heterocyclic group containing from 1 to 4 hetero atoms provided that when R.sup.10 is hydrogen, i is 0, and a is an integer of from 0 to 5; or --CH.sub.2 --CHR.sup.8 --CO--R.sup.9 wherein R.sup.8 is hydrogen, lower alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl or a monocyclic or bicyclic heterocyclic group containing from 1 to 4 hetero atoms, and R.sup.9 is hydroxyl, --OX wherein X is alkyl, aryl, lower alkoxycarbonyloxyalkyl or 1-phthalidyl, or --N(Y.sup.1) (Y.sup.2) wherein each of Y.sup.1 and Y.sup.2 is hydrogen, lower alkyl, aryl, aralkyl or cycloalkyl, or Y and.sup.1 and Y.sup.2 form together with the adjacent nitrogen atom a 5- or 6-membered heterocyclic group which may contain a further hereto atom; m is 0, 1 or 2; and n is an integer of from 1 to 5, provided that when R.sup.1 is hydrogen, m is 0; or a salt thereof, which is useful as hypotensive drugs.