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:
Apr. 17, 1990
Filed:
May. 16, 1989
Applicant:
Inventors:
Akira Hasegawa, Gifu, JP;
Makoto Kiso, Gifu, JP;
Assignee:
Wako Pure Chemical Industries, Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H / ; C07G / ; C07G / ; A01N / ;
U.S. Cl.
CPC ...
536-11 ; 536 53 ; 536 551 ; 536 553 ; 536124 ; 514 54 ;
Abstract
The present invention provides a novel process for producing gangliosides such as GM.sub.3 and GM.sub.4 and analogues thereof. This process has the excellent characteristics in that in introduction of ceramide into sialooligosaccharides, first an azidosphingosine derivative is introduced and then the azido portion is reduced to effect N-acylation. The present invention has a conspicuous effect in that the yield is markedly improved as compared with conventional processes.