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:
Mar. 13, 1979
Yoshikazu Isowa, Tokyo, JP;
Muneki Ohmori, Tokyo, JP;
Kaoru Mori, Sagamihara, JP;
Tetsuya Ichikawa, Sagamihara, JP;
Yuji Nonaka, Shin-nanyo, JP;
Keiichi Kihara, Shin-nanyo, JP;
Kiyotaka Oyama, Shin-nanyo, JP;
Heijiro Satoh, Shin-nanyo, JP;
Shigeaki Nishimura, Shin-nanyo, JP;
Toyo Soda Manufacturing Co. Ltd., Tokyo, JP;
(Zaidanhojin) Sagami Chemical Research Center, Yamaguchi, JP;
Abstract
Addition compounds having the formula ##STR1## wherein R.sub.1 represents an aliphatic oxycarbonyl group, benzyloxycarbonyl group which can have nuclear substituents, or benzoyl, aromatic sulfonyl or aromatic sulfinyl group; R.sub.2 represents methyl, isopropyl, isobutyl, isoamyl or benzyl group; R.sub.3 represents a lower alkoxyl, benzyloxy or benzhydryloxy group and n represents 1 or 2 are produced by reacting an N-substituted monoaminodicarboxylic acid having the formula ##STR2## with an amino carboxylic acid ester having the formula ##STR3## in the presence of a protease.