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. 12, 2019
Filed:
Jun. 20, 2017
Applicant:
Kappa Bioscience As, Oslo, NO;
Inventors:
Assignee:
KAPPA BIOSCIENCE AS, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 46/02 (2006.01); C07C 41/18 (2006.01); C07C 41/22 (2006.01); C07C 41/26 (2006.01); C07C 41/30 (2006.01); C07C 50/14 (2006.01); C07C 315/04 (2006.01); C07C 319/20 (2006.01); C07C 17/16 (2006.01); C07C 43/215 (2006.01); C07C 46/04 (2006.01); C07C 21/215 (2006.01);
U.S. Cl.
CPC ...
C07C 46/02 (2013.01); C07C 17/16 (2013.01); C07C 21/215 (2013.01); C07C 41/18 (2013.01); C07C 41/22 (2013.01); C07C 41/26 (2013.01); C07C 41/30 (2013.01); C07C 43/215 (2013.01); C07C 46/04 (2013.01); C07C 50/14 (2013.01); C07C 315/04 (2013.01); C07C 319/20 (2013.01); C07B 2200/13 (2013.01);
Abstract
Using a combination of Kumada, Suzuki and Biellmann chemistry, various menaquinones can synthesized rapidly and with stereochemical integrity offering a new way of preparing these vitamin K2 components for the pharmaceutical market. In one embodiment a process for the preparation of a compound of formula (I)