Monocyclic intermediates for thia-aza compounds with a .beta.-la

Details Monocyclic intermediates for thia-aza compounds with a .beta.-la Monocyclic intermediates for thia-aza compounds with a .beta.-la

1982-09-24

1985-06-18

Berch, Mark L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602454, 2603303, 2603309, 260239E, 546208, 546275, C07D20508, C07D40312, C07D40112, C07D48704

Patent

active

045240280

ABSTRACT:
2-Penem-3-carboxylic acid compounds of the formula ##STR1## in which R.sub.1 represents hydrogen, an organic radical bonded by a carbon atom to the ring carbon atom or an etherified mercapto group and

REFERENCES:
patent: 4070477 (1978-01-01), Ernest et al.
patent: 4182711 (1980-01-01), Ueda
Elhs, "Recent Advances with Chemistry of .beta.-Lactams", Sp. Pub. 28, The Chem. Soc., London, (1976), 167-180.

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