7-Acylamino-3-acyl-2(or 3)cephems

Details 7-Acylamino-3-acyl-2(or 3)cephems 7-Acylamino-3-acyl-2(or 3)cephems

1974-12-10

1977-03-15

Gallagher, R. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

424246, C07D50124, C07D50160

Patent

active

040123804

ABSTRACT:
Intermediate C-3 1-hydroxyalkyl or 1-hydroxyarylalkyl cephems, prepared by reacting Grignard reagents at low temperature with 3-formyl-2-cephem compounds, are oxidized to the corresponding 7-acylamino-3-acyl-2(or 3)cephem-4-carboxylic acids and esters thereof, which are useful as antibiotics or as intermediates in preparing antibiotic substances.

REFERENCES:
patent: 3488729 (1970-01-01), Chauvette
patent: 3647786 (1972-03-01), Cooper
patent: 3707540 (1972-12-01), Amiard et al.
patent: 3714154 (1973-01-01), Pfeiffer et al.
patent: 3897424 (1975-07-01), Koppel et al.
patent: 3905967 (1975-09-01), Berges
patent: 3947413 (1976-03-01), Christensen et al.

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