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. 04, 1977
Filed:
Oct. 22, 1975
Applicant:
Inventor:
Hermann Faubl, Mystic, CT (US);
Assignee:
Pfizer Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
Hydrogenation of a mixture prepared from a 6-deoxy-6-demethyl-6-methylenetetracycline compound, and a catalytic amount of a dicarboxylato(triphenylphosphine)rhodium(II) or dicarboxylato(substituted triphenylphosphine)rhodium(II) compound, in a reaction-inert solvent, produces the corresponding 6-deoxytetracycline compound. The hydrogenation takes place with a stereoselectivity which favors the 6.alpha.-isomer over the 6.beta.-isomer. The products are known antibacterial agents.
Faubl, Hermann. (1977). Preparation of .alpha.-6-deoxytetracyclines (U.S. Patent No. 4001321). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4001321
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile