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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 4714760 B1

PDFFull Text
Date of Patent:
Dec. 22, 1987

Filed:

Jul. 11, 1986

Cephalosporin intermediates

Applicant:
Inventors:

Steven P Brundidge, Wolcott, NY (US);

Paul R Brodfuehrer, Syracuse, NY (US);

Chet Sapino, Jr, East Syracuse, NY (US);

Kun M Shih, East Syracuse, NY (US);

Donald G Walker, Liverpool, NY (US);

Assignee:

Bristol-Myers Company, New York, NY (US);

Attorney:

Algieri; Aldo A.

Primary Examiner:

Sidney Marantz

Assistant Examiner:

Robert Benson

Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
540222 ; 540224 ; 540226 ;
Abstract

Stable, crystalline cephalosporin intermediates of the formula ##STR1## wherein X is HI or HCl and Nu and Nu.sup..sym. are certain N-containing heterocyclic rings attached via a sulfur atom or a ring nitrogen atom, respectively, which are substantially free of the .DELTA..sup.2 isomer; processes for, and intermediates in, the preparation of the above compounds; and processes for the preparation of broad-spectrum cephalosporin antibiotics.

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Brundidge, Steven. (1987). Cephalosporin intermediates (U.S. Patent No. 4714760). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4714760

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