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:
Sep. 14, 1976
Filed:
Apr. 27, 1970
Applicant:
Inventor:
Yoshio Suzuki, Amagasaki, JA;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
26050112 ; 2605 / ; 2605 / ;
Abstract
Optical resolution of a dl-.alpha.-phenyl-.beta.-(lower alkylphenyl)ethylamine is carried out by reacting the dl-amine with L-aspartic acid to form diastereoisomeric salts, subjecting the same to fractional crystallization in a mixture composed of water and a water-miscible organic solvent, and decomposing the separated diastereoisomeric salt with a base individually. The thus obtained optically active .alpha.-phenyl-.beta.-(lower alkylphenyl)ethylamine is used as intermediates for the production of higher fatty acid amides having prominent cholesterol lowering activity.