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:
Mar. 17, 1981
Filed:
Nov. 08, 1979
Kimiaki Hayashi, Suita, JP;
Jyoji Kato, Yawata, JP;
Tomofumi Uchida, Neyagawa, JP;
Naoto Yoneda, Suita, JP;
Tanabe Seiyaku Co., Ltd., Osaka, JP;
Abstract
A compound of the formula: ##STR1## wherein R.sup.1 is hydrogen or methyl, is prepared by condensing a compound of the formula: ##STR2## wherein R.sup.2 is alkyl, aryl or aralkyl and R.sup.1 is same as above, or a reactive derivative thereof with 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid or an ester thereof to give a compound of the formula: ##STR3## wherein R.sup.3 is an ester residue and R.sup.1 and R.sup.2 are same as above, followed by hydrolysis or ammonolysis of said compound (IV). The compound (I) is useful as a diagnostic or therapeutic agent for angiotensin-related hypertension.