Process for preparing 7.beta.-acylamino-7.alpha.-alkoxycephalosp

Details Process for preparing 7.beta.-acylamino-7.alpha.-alkoxycephalosp Process for preparing 7.beta.-acylamino-7.alpha.-alkoxycephalosp

1975-07-29

1977-04-12

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

424246, C07D50102

Patent

active

040174883

ABSTRACT:
A 7.beta.-acylamino-7.alpha.-alkoxycephalosporin is prepared by reacting a 7-acylaminocephalosporin with a halogenating agent to give an iminohalide, reacting the latter compound with a base to give a keteneimine, reacting the latter compound with a halogen to give an .alpha.-halogeno iminohalide, reacting the latter compound with an alkali metal alkoxide and consecutively either subjecting the resulting compound to hydrolysis, or reacting the resulting compound with an acid or a halogenosilyl compound followed by treating the resulting compound with water.
The 7.beta.-acylamino-7.alpha.-alkoxycephalosporin is useful as an antibacterial agent.

REFERENCES:
patent: 3843641 (1964-10-01), Christensen et al.
patent: 3867379 (1975-03-01), Dolfini et al.

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