Process for the preparation of thienamycin and intermediates

Process for the preparation of thienamycin and intermediates

Disclosed is a process for preparing 7-(1-hydroxethyl)-3-(2-aminoethylthio)-1-carbadethiaceph-3-em-3-carbox ylic acid and its pharmaceutically acceptable salts and esters (I) by total synthesis starting with L-aspartic acid and proceeding via intermediates II and IIa (4-iodomethylazetidin-2-one): I...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHRISTENSEN, BURTON GRANT, RATCLIFFE, RONALD WILLIAM, SALZMANN, THOMAS NORSE
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Disclosed is a process for preparing 7-(1-hydroxethyl)-3-(2-aminoethylthio)-1-carbadethiaceph-3-em-3-carbox ylic acid and its pharmaceutically acceptable salts and esters (I) by total synthesis starting with L-aspartic acid and proceeding via intermediates II and IIa (4-iodomethylazetidin-2-one): I II +TR IIa