3-Substituted methyl-7-acylamino-7-methoxy-2-cephem-4-carboxylic

Details 3-Substituted methyl-7-acylamino-7-methoxy-2-cephem-4-carboxylic 3-Substituted methyl-7-acylamino-7-methoxy-2-cephem-4-carboxylic

1974-12-05

1976-10-19

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

424246, C07D50160

Patent

active

039870405

ABSTRACT:
Process for preparing an ester of 3-substituted methyl-7-acylamido-7-methoxy(or hydrogen)-2-cephem-4-carboxylic acid and its corresponding sulfoxide by treating an ester of 3-carbamoyloxymethyl(or 3-lower alkanoyloxymethyl)-7-acylamido-7-methoxy(or hydrogen)-2-cephem-4-carboxyli c acid with a hydrohalic acid or another compound containing an active hydrogen and then with an oxidizing agent. The products obtained are useful as intermediates in the preparation of antibiotics.

REFERENCES:
patent: 3705897 (1972-12-01), Murphy
patent: 3709880 (1973-01-01), Goegelman et al.
patent: 3719563 (1973-03-01), Hamill et al.
nagarajan et al., J. Am. Chem. Soc. 93(9) pp. 2308-2310 (5/5/71).

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