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:
Mar. 03, 1981
Filed:
Jul. 06, 1979
Applicant:
Inventors:
Paolo deWitt, Rome, IT;
Enrico Diamanti, Rome, IT;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
26050115 ; 564198 ;
Abstract
A process for manufacturing the D camphorate of L carnitinamide and the D camphorate of D carnitinamide is disclosed, wherein D,L carnitinamide hydrochloride is converted to D,L carnitinamide free base which directly reacts with D camphoric acid either as an aqueous suspension or in solid form, thus obtaining a solution of D camphorate of D,L carnitinamide. The resolution of the optical isomers is achieved by drying this solution and taking up the residue with isopropanol, whereupon the D camphorate of L carnitinamdide crystallizes out of the isopropanol solution and the D camphorate of D carnitinamide remains in solution.