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. 13, 1979
Filed:
Sep. 27, 1978
Applicant:
Inventor:
Tiberio Bruzzese, Milan, IT;
Assignee:
Holco Investment Inc., , PA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 424244 ; 42424854 ; 424267 ;
Abstract
The present invention provides a process for the preparation of rifampicin, wherein rifamycin S is reacted in an aprotic dipolar solvent with a 1,3,5-trisubstituted hexahydro-1,3,5-triazine at a temperature from 20.degree. to 100.degree. C. followed by reaction with 1-amino-4-methylpiperazine, while keeping the pH in the range of from 5 to 7, whereafter the rifampicin formed is isolated.
Bruzzese, Tiberio. (1979). Process for the preparation of rifampicin (U.S. Patent No. 4174320). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4174320
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile