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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.:

US 4542235 B1

PDFFull Text
Date of Patent:
Sep. 17, 1985

Filed:

Apr. 05, 1983

Method for producing an optically active

Applicant:
Inventors:

Masayoshi Minai, Moriyama, JP;

Tadashi Katsura, Suita, JP;

Kazuhiko Hamada, Ibaraki, JP;

Gohfu Suzukamo, Ibaraki, JP;

Assignee:

Sumitomo Chemical Company, Limited, Osaka, JP;

Attorney:

Stevens, Davis, Miller & Mosher

Primary Examiner:

Natalie Trousof

Assistant Examiner:

Vera C Clarke

Int. Cl.
CPC ...
C07B / ;
U.S. Cl.
CPC ...
562401 ; 562506 ;
Abstract

A method for producing an optically active 2,2-dimethylcyclopropanecarboxylic acid useful as an intermediate for dehydropeptidase I inhibitors, medicines and agricultural chemicals, which comprises reacting an optically active diphenylethylamine represented by the formula, ##STR1## wherein R.sub.1 and R.sub.2 are each a hydrogen atom or a lower alkyl group, with 2,2-dimethylcyclopropanecarboxylic acid in a solvent to achieve the optical purification of said acid.

Find Patent Forward Citations

Minai, Masayoshi. (1985). Method for producing an optically active (U.S. Patent No. 4542235). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4542235

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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