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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 4599151 B1

PDFFull Text
Date of Patent:
Jul. 08, 1986

Filed:

Mar. 15, 1985

Process for preparing 2,2-bishalomethylpenam derivatives

Applicant:
Inventors:

Sigeru Torii, Okayama, JP;

Hideo Tanaka, Okayama, JP;

Michio Sasaoka, Tokushima, JP;

Takashi Shiroi, Tokushima, JP;

Seiryu Uto, Tokushima, JP;

Assignee:

Otsuka Kagaku Kabushiki Kaisha, Osaka, JP;

Attorney:

Armstrong, Nikaido, Marmelstein & Kubovcik

Primary Examiner:

R L Andrews

Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
204 / ; 204 81 ;
Abstract

This invention provides a process for preparing a 2,2-bishalomethylpenam derivative represented by the formula ##STR1## wherein R.sup.1 represents a lower alkyl group, aryl group, arylmethyl group, arylcarbonyl group or aryloxymethyl group, R.sup.2 represents a carboxyl-protecting group, X.sup.1 and X.sup.2 are the same or different and represent a halogen atom, the process being characterized in that a disulfide represented by the formula ##STR2## wherein R.sup.1, R.sup.2 and X.sup.1 are as defined above and R.sup.3 represents an aryl group or heterocyclic group is subjected to an electrolytic reaction in a solvent in the presence of a halogen acid and/or halogen salt.

Find Patent Forward Citations

Torii, Sigeru. (1986). Process for preparing 2,2-bishalomethylpenam derivatives (U.S. Patent No. 4599151). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4599151

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

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