Verfahren zur Herstellung von Penem Derivaten und Zwischenprodukte zu dieser Herstellung

Verfahren zur Herstellung von Penem Derivaten und Zwischenprodukte zu dieser Herstellung

Compounds of the general formula I in which X denotes a halogen atom; Y denotes a hydrogen atom, a halogen atom, or a moiety of the general formula II Z denotes a halogen atom, a hydroxy group, a substituted hydroxy group, an -S(O)nR group, or an -Se(O)mR group; n denotes 0, 1 or 2, preferably 0 or...

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Hauptverfasser: OSBORNE, NEAL FREDERICK, THIRD AVENUE HARLOW ESSEX CM19 5AW, GB, WALKER, GRAHAM, THIRD AVENUE HARLOW ESSEX CM19 5AW, GB, COULTON, STEVEN, THIRD AVENUE HARLOW ESSEX CM19 5AW, GB, HARBRIDGE, JOHN BARRY, THIRD AVENUE HARLOW ESSEX CM19 5AW, GB
Format: Patent
Sprache: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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Zusammenfassung:Compounds of the general formula I in which X denotes a halogen atom; Y denotes a hydrogen atom, a halogen atom, or a moiety of the general formula II Z denotes a halogen atom, a hydroxy group, a substituted hydroxy group, an -S(O)nR group, or an -Se(O)mR group; n denotes 0, 1 or 2, preferably 0 or 1; m denotes 0 or 1; R denotes a hydrogen atom or an organic group; R denotes a hydrogen atom, a carboxy-salt-forming ion, or a carboxy-ester-forming group; R denotes a hydrogen atom, a hydrocarbon group, or a heterocyclyl group; and R denotes a hydrogen atom, an unsubstituted or substituted hydrocarbon group, or an unsubstituted or substituted heterocyclyl group; are novel intermediates useful in the preparation of 6-methylene-penems of the general formula X: c