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:
Feb. 08, 2005
Filed:
Dec. 24, 1999
Applicants:
Yoshio Nishimura, Komae, JP;
Eiki Shitara, Yokohama, JP;
Tomio Takeuchi, Tokyo, JP;
Inventors:
Assignees:
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai, Tokyo, JP;
Meiji Seika Kaisha, Ltd., Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K031/445 ; C07D211/36 ; C07D211/60 ;
U.S. Cl.
CPC ...
Abstract
A compound of the formula (I):and a compound of the formula (V):as well as a compound of the formula (X):which are each a novel siastatin B derivative having a potent inhibitory activity against a glycosidase, are now synthesized by new processes. The compound of the formula (I), the compound of the formula (V) and the compound of the formula (X) have a potent enzyme-inhibitory activity to a glycosidase, which is particularly N-acetyl-galactosaminidase, galactosidase, glucosidase and mannosidase.