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:
Jul. 28, 1992
Filed:
Jan. 17, 1991
Makoto Sunagawa, Osaka, JP;
Yoshihito Nozaki, Osaka, JP;
Akira Sasaki, Osaka, JP;
Haruki Matsumura, Osaka, JP;
Sumitomo Pharmaceuticals Company, Limited, Osaka, JP;
Abstract
An amino acid compound of the formula: ##STR1## wherein R is a lower alkyl group, R.sub.1 is a hydrogen atom or a protecting group for carboxyl, R.sub.2 is a hydrogen atom, a protecting group for amino, an optionally substituted allyl group of the formula: ##STR2## (wherein R.sub.3 and R.sub.4 are each a hydrogen atom, a lower alkyl group or an aryl group), a beta-hydroxyethyl group in which the hydroxyl group is optionally protected, a formylmethyl group in which the formyl group is optionally protected, a carboxymethyl group in which the carboxyl group is protected or a 2-furylmethyl group and X is an optionally protected carboxyl group, a hydroxymethyl group in which the hydroxyl group is optionally protected or a substituted mercaptomethyl group of the formula: