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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 5380860 B1

PDFFull Text
Date of Patent:
Jan. 10, 1995

Filed:

Jan. 24, 1992

Preparation of beta-ketoesters useful in preparing quinolone antibiotics

Applicant:
Inventors:

Frank R Busch, New London, CT (US);

Richard S Lehner, New London, CT (US);

Brian T O'Neill, New London, CT (US);

Assignee:

Pfizer Inc., New York, NY (US);

Attorneys:

Richardson; Peter C.

Ginsburg; Paul H.

Strassburger; Philip C.

Primary Examiner:

Bernard Dentz

Int. Cl.
CPC ...
C07C / ; C07D / ;
U.S. Cl.
CPC ...
546315 ; 560 51 ;
Abstract

A method for preparing a compound of the formula ##STR1## wherein Q is C--H or N; R.sup.1 is C.sub.1-C.sub.4 alkyl, benzyl or p-nitrobenzyl and X and Y are independently selected from fluoro and chloro comprising reacting a compound of the formula ##STR2## wherein Q is >C--H or N; X and Y are independently selected from fluoro and chloro; and Z is fluoro, chloro, 1-imidazolyl or substituted 1-imidazolyl, wherein the 1-imidazolyl group is substituted with one or two substituents independently selected from C.sub.1 to C.sub.4 alkyl, with a compound of the formula

Find Patent Forward Citations

Busch, Frank. (1995). Preparation of beta-ketoesters useful in preparing quinolone antibiotics (U.S. Patent No. 5380860). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5380860

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

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