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. 18, 1994
Filed:
Jul. 10, 1991
Applicant:
Inventors:
Chein-Shyong Su, Taipei, TW;
Huey-Lin Chung, Taipei, TW;
Wuen-Hsian Huang, Taipei, TW;
Hsin Tsai, Taipei, TW;
Assignee:
Development Center for Biotechnology, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ;
U.S. Cl.
CPC ...
435 681 ; 435108 ; 435109 ; 435129 ;
Abstract
Disclosed is a process for the preparation of N-benzyloxycarbonyl-.alpha.-L-aspartyl-L-phenylalanine methyl ester wherein a protease is used to catalyze the condensation reaction of N-benzyloxycarbonyl-L-aspartic acid with L-phenylalanine methyl ester in a system consisting of ethyl acetate, citrate buffer with the addition of glycerol as a dispersing agent.