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:
Jun. 26, 1979
Filed:
May. 31, 1977
Applicant:
Inventors:
Derek H Barton, London, GB;
Robert H Hesse, Cambridge, MA (US);
Assignee:
Research Institute for Medicine & Chemistry, Inc., Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424236 ; 2603972 ;
Abstract
A process for the preparation of 5,6-cis- and 5,6-trans-10,19-dihydro-vitamin D derivatives which comprises hydrogenating a corresponding vitamin D compound in the presence of a ligand-coordinated homogeneous transition metal catalyst whereby the C-19 methylene group of the vitamin D compound is converted into a methyl group.
Barton, Derek. (1979). Hydrogenation process for the preparation of 5,6 cis- and (U.S. Patent No. 4159326). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4159326
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile