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.

Date of Patent:
Apr. 25, 2000

Filed:

Oct. 17, 1997
Applicant:
Inventors:

Barry Peter Clark, Lower Froyle, GB;

John Richard Harris, Guildford, GB;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; C07C / ;
U.S. Cl.
CPC ...
514183 ; 514 96 ; 514100 ; 514 75 ; 514140 ; 514217 ; 514212 ; 514298 ; 514381 ; 514431 ; 514437 ; 514450 ; 514454 ; 514572 ; 540522 ; 546108 ; 549 26 ; 549354 ; 549388 ;
Abstract

Compounds of the formula ##STR1## in which R.sup.1 is Y or Y--C.sub.1-6 alkyl, where Y is carboxy, tetrazolyl, --SO.sub.2 H, --SO.sub.3 H, --OSO.sub.3 H, --CONHOH, or --P(OH)OR', --PO(OH)OR', --OP(OH)OR' or --OPO(OH)OR' where R' is hydrogen, C.sub.1-6 alkyl, C.sub.2-6 alkenyl or optionally substituted phenyl-C.sub.1-6 alkyl,


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