Fremgangsmåde til fremstilling af en cephalosporinforbindelse i form af et syreadditionssalt af et betain

Betaine (Ie is prepd. by reacting the hydronitrate with a base, pref. an organic one with a pKb of 6 or less, particularly a liquid tertiary or secondary amine: (where R1 is H; R2 is acyl and X is quaternary ammonium). Specifically claimed is N-(7-21-thienylacetamido-cepth-3-em-3-ylmethyl)pyridinium...

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Bibliographische Detailangaben
Hauptverfasser:	ALAN GIBSON LONG, GABRIELLE STOCKER, STEPHEN EARDLEY
Format:	Patent
Sprache:	dan
Schlagworte:	ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING, OR PRINTINGFOR OFFICE OR OTHER COMMERCIAL PURPOSES CHEMISTRY CORRECTION OF TYPOGRAPHICAL ERRORS HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HYGIENE i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	Betaine (Ie is prepd. by reacting the hydronitrate with a base, pref. an organic one with a pKb of 6 or less, particularly a liquid tertiary or secondary amine: (where R1 is H; R2 is acyl and X is quaternary ammonium). Specifically claimed is N-(7-21-thienylacetamido-cepth-3-em-3-ylmethyl)pyridinium-4-carbo- xylate.