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:
Sep. 15, 1987
Filed:
Dec. 11, 1984
Applicant:
Inventors:
Tomoya Ogawa, Musashino, JP;
Mamoru Sugimoto, Niiza, JP;
Yoshiyasu Shitori, Musashino, JP;
Masayoshi Ito, Kunitachi, JP;
Assignees:
Kanto Ishi Pharmaceutical Co., Ltd., Tokyo, JP;
Rikagaku Kenkyusho, Wako, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H / ;
U.S. Cl.
CPC ...
536 172 ; 536 186 ; 536-41 ;
Abstract
Sialic acid derivatives of the formula: ##STR1## wherein R.sup.1 is hydrogen, trityl, or acyl, R.sup.2 is hydrogen or acyl, R.sup.3 and R.sup.4 are individually glycerolglycoside, dialkylglycerol, alkoxycarbonyl or carboxyl. These compounds may be employed as a useful intermediate for the synthesis of biologically active substances and may be employed as an inhibitor of hydrolytic enzyme, a reagent for affinity chromatography for purifying enzyme, or a synthetic antigen.