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. 06, 1990
Filed:
Aug. 31, 1987
Satoshi Horii, Osaka, JP;
Hiroshi Fukase, Osaka, JP;
Takeda Chemical Industries, Ltd., Osaka, JP;
Abstract
Disclosed is a novel inosose compound represented by the general formula: ##STR1## wherein X.sup.1 and X.sup.2 are both halogen; X.sup.1 is hydrogen and X.sup.2 is halogen; or X.sup.1 is --SQ.sup.1 and X.sup.2 is --SQ.sup.2 (each of Q.sup.1 and Q.sup.2 is lower alkyl or Q.sup.1 and Q.sup.2 may form lower alkylene), R.sup.1 is a protective group for hydroxyl and Y is .dbd.O, .dbd.N--Z (Z is hydroxyl which may be protected) or ##STR2## (A is hydrogen or an amine residue), particularly to the compound wherein the symbol Y is oxygen. The inosose compound is useful as intermediates for production of valiolamine and the N-substituted derivatives thereof, which have potent .alpha.-glucosidase inhibiting activities and are useful as preventives or therapeutics for symptoms of hyperglycemia and various diseases derived therefrom in human and animals, such as diabetes, obesity and hyperlipemia.