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:
Aug. 11, 1987
Filed:
Jul. 22, 1986
Applicant:
Inventors:
Shinobu Iriuchijima, Tokyo, JP;
Hirohiko Kobayashi, Tokyo, JP;
Kyoji Aoki, Tokyo, JP;
Takeshi Oda, Tokyo, JP;
Masayuki Shinoyama, Niigata, JP;
Yoshifumi Nosaka, Niigata, JP;
Assignee:
Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548544 ;
Abstract
A process for producing oxiracetam (4-hydroxy-2-oxo-1-pyrrolidineacetamide) useful as an agent for improving brain metabolism, under mild conditions and in a single process is provided, this process comprises reacting glycinamide with a butyric acid ester expressed by the formula ##STR1## wherein A represents a halogen atom or an epoxy group, B represents hydroxyl group, but when A is an epoxy group, A and B together form an epoxy group, and R represents an alkyl group.