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:
Apr. 28, 1998
Filed:
May. 20, 1997
Applicant:
Inventors:
Katsumasa Harada, Yamaguchi, JP;
Akio Matsushita, Yamaguchi, JP;
Yasuhiro Kawachi, Yamaguchi, JP;
Hiroshi Sasaki, Yamaguchi, JP;
Assignee:
Ube Industries, Ltd., Yamaguchi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
546 14 ;
Abstract
Methyl (3R, 6E)-3-�(tert-butyldimethylsilyl)oxy!-7-�2', 6'-diisopropyl-4'-(4'-fluorophenyl)-5'-(methoxymethyl)pyridin-3'-yl!-5-oxy -6-heptenoate or other 3-oxy-5-oxo-6-heptenoic acid derivative is prepared by the reaction of an aromatic aldehyde and an oxyglutaric acid derivative in an aliphatic alcohol containing a small amount of water in the presence of an alkali metal carbonate or hydrogen carbonate.