OPTICALLY ACTIVE 2-AZETIDINONE COMPOUNDS

Novel 2-azetidinones of the formula I wherein R is alkyl of 1 to 4 carbon atoms, R1 is selected from the group consisting of hydrogen, -OH, protected hydroxy and -OCH2-COOR', R' is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and R2 is selected from the g...

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Bibliographische Detailangaben
Hauptverfasser:	ALICE GATEAU-OLESKER, STEPHANE GERO, JEANINE CLEOPHAX
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Novel 2-azetidinones of the formula I wherein R is alkyl of 1 to 4 carbon atoms, R1 is selected from the group consisting of hydrogen, -OH, protected hydroxy and -OCH2-COOR', R' is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and R2 is selected from the group consisting of alkyl of 1 to 4 carbon atoms and hydroxyl protective group and a novel process and novel intermediates for their preparation and a process for the preparation of compounds of the formula VII wherein R has the above definition, R'd is selected from the group consisting of hydrogen, -OH and protected hydroxyl and R3 is selected from the group consisting of hydrogen and R3', R3' is amino protective group which are useful intermediates.