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:
Aug. 13, 2019
Filed:
Nov. 29, 2016
Applicant:
F.i.s.—fabbrica Italiana Sintetici S.p.a., Montecchio Maggiore, IT;
Inventors:
Paolo Maragni, Virgilio, IT;
Massimo Verzini, Via Terme, IT;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C07D 309/14 (2006.01); C07D 317/28 (2006.01); C07D 317/72 (2006.01); C07D 303/36 (2006.01); C07C 271/16 (2006.01); C07C 309/73 (2006.01); C07C 233/18 (2006.01);
U.S. Cl.
CPC ...
C07D 309/14 (2013.01); C07C 233/18 (2013.01); C07C 271/16 (2013.01); C07C 309/73 (2013.01); C07D 303/36 (2013.01); C07D 317/28 (2013.01); C07D 317/72 (2013.01);
Abstract
The present invention relates to a process for preparing 3-amino tetrahydropyrans and, more particularly, to an improved method for synthesizing a 2,3,5-substituted tetrahydropyran derivative, intermediate being used in the preparation of dipeptidyl peptidase-IV enzyme inhibitors (DPP-4 inhibitors).