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:
Feb. 01, 1977
Filed:
Apr. 24, 1975
Connlab Holdings Limited, Willowdale, CA;
Abstract
The invention relates to compounds of the formula: ##STR1## wherein R stands for benzyl, phenoxymethyl, 4-amino-4-carboxy-1-butyl, R.sup.3 O--, R.sup.3 S--, R.sup.3 R.sup.4 N-- wherein R.sup.3 is loweralkyl, aryl or arylloweralkyl, R.sup.4 is hydrogen or R.sup.3, and OH when the radicals R.sup.3 O--, R.sup.3 S-- and R.sup.3 R.sup.4 N--are hydrolyzed; R.sup. 2 is hydrogen or methoxy, and R.sup.1 is hydrogen or a cleavable radical such as --CH.sub.2 OCH.sub.3, loweralkyl, 2,2,2-trichloroethyl, benzyl, p-nitrobenzyl, benzhydryl, phenoxyethyl or trimethylsilyl. The novel compounds are useful intermediates in the preparation of known penicillin and cephalosporin derivatives.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile