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. 15, 1977
Filed:
Oct. 30, 1975
Applicant:
Inventor:
Antonio Luis Palomo Coll, Barcelona, ES;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544 18 ;
Abstract
A process consisting in reacting one mole of an alpha-halobenzyl penicillin-(s)-sulphoxide with at least two moles of 3-trimethylsilyl-2-oxazolidinone (TMSO) at a temperature of between 60 and 120.degree. C in acetonitrile solution in the presence of a tertiary organic base p-toluene sulphonate and thiourea is described. The solvent is removed by evaporation from the solution obtained, the residue is diluted with water, the pH is adjusted to 4.2 and 7-aminodesacetoxycephalosporanic acid (7-ADCA) is isolated.
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Palomo Coll, Antonio. (1977). Process for the conversion of 6-aminopenicillanic acid (6-apa) in (U.S. Patent No. 4058660). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4058660
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile