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:
Jan. 31, 1984
Filed:
Aug. 25, 1980
Wolfgang Koebernick, Wuppertal, DE;
Hans-Rolf Furtwangler, Wuppertal, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
The invention relates, inter alia, to a process for the provision of 6-amino-6-desoxy-2,3-O-isopropylidene-.alpha.-L-sorbofuranose derivatives which comprises treating a 2,3-O-isopropylidene-6-sulphonated-.alpha.-L-sorbofuranase with an amine in an aqueous medium in an autoclave, followed by reaction of the reactions product in a basic medium to provide the free amine of Formula I as described hereinafter. The invention also includes the products obtained by the reaction and the invention further includes the process for providing the compounds of Formula VII as described hereinafter by treatment of a compound of Formula I as described hereinafter with an acid, followed by hydrogenation. The products of the invention are useful as medicaments or intermediates for medicaments.