.beta.-Lactam compounds, their preparation and use

Details .beta.-Lactam compounds, their preparation and use .beta.-Lactam compounds, their preparation and use

1980-11-03

1983-02-15

Lee, Mary C.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Fungus, except allergen, or component thereof or substance...

2602452T, 424114, A61K 3140, C07D48704

Patent

active

043741444

ABSTRACT:
The present invention relates to the preparation of compounds of the formula: ##STR1## wherein CO.sub.2 R.sub.1 is a free, salted or esterified carboxyl group, n is 0 or 1, and R.sub.2 is hydrogen or an acyl group or a group of the sub-formula (a):

REFERENCES:
patent: 4113856 (1978-09-01), Cole et al.
patent: 4141986 (1979-02-01), Cassidy et al.
patent: 4146610 (1979-03-01), Cole et al.
patent: 4162323 (1979-07-01), Kahan
patent: 4172129 (1979-10-01), Cole et al.
patent: 4263314 (1981-04-01), Ponsford et al.
Merck & Co.; Derwent Abstract 82381y, 4/28/76.
Derwent Abstract 38809, 11/17/76.
Derwent Abstract 33698, 10/13/77.
Maeda et al., J. Antibiotics, vol. 30, p. 770, (1977).
Brown et al., J. Chem. Soc. Chem. Comm., (1977), p. 523-525.

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