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.:
Date of Patent:
Aug. 04, 1981
Filed:
May. 07, 1979
Beecham Group Limited, , GB;
Abstract
Compounds of the formula (II): ##STR1## wherein X is halogen, hydroxyl or functionalized hydroxyl; Y is halogen, hydroxyl or alkoxy; R.sup.1 is a carboxylic acid group and ester thereof and amide derivative thereof or cyano; and R.sup.2 is hydrogen, a hydrocarbon, a heterocycle, a carboxylic acid group, a carboxylic acid ester, a carboxylic acid amide derivative, acyl, cyano, isocyano or an optionally substituted imine of the formula --CH.dbd.NZ or --N.dbd.CH.sub.2 wherein Z is hydrogen, alkyl, aryl, sulphonyl, --SR.sup.a, sulphoxide --SR.sup.a, or sulphonate --SR.sup.a wherein R.sup.a is alkyl of 1 to 6 carbon atoms or aryl, are useful as intermediates for the ultimate production of penicillins or cephalosporins.