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:
Nov. 30, 1999
Filed:
Jul. 25, 1997
Applicant:
Inventors:
Ken Tokuyasu, Tsukuba, JP;
Hiroshi Ono, Tsukuba, JP;
Mayumi Kameyama, Abiko, JP;
Yutaka Mori, Tsukuba, JP;
Shioka Hamamatsu, Tsukuba, JP;
Kiyoshi Hayashi, Tsuchiura, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H / ; C07H / ; C07H / ;
U.S. Cl.
CPC ...
536 174 ; 536 172 ; 536 185 ; 536-41 ; 536179 ;
Abstract
Disclosed is p-nitrophenyl 2-acetylamino-4-O-(2-amino-2-deoxy-.beta.-D-glucopyranosyl)-2-deoxy-.beta. -D-glucopyranoside of formula (1) and its acid-addition salts. ##STR1## The compound of formula (1) is produced by reacting a p-nitrophenyl derivative of chitin dimer with a microorganism-derived deacetylase. The compound and its salts do not act on exo-type chitinases, and are specific to only endo-type ones.