Bicyclic unsaturated thia-aza compounds and 4-acylthio azetidino

Details Bicyclic unsaturated thia-aza compounds and 4-acylthio azetidino Bicyclic unsaturated thia-aza compounds and 4-acylthio azetidino

1980-06-11

1982-12-21

Berch, Mark L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D20508

Patent

active

043648657

ABSTRACT:
The invention relates to 6-amino-2-penem-3-carboxylic acid compounds of the formula ##STR1## in which R.sub.1.sup.a denotes hydrogen or an amino protective group R.sub.1.sup.A and R.sub.1.sup.b represents hydrogen or an acyl radical Ac, or in which R.sub.1.sup.a and R.sub.1.sup.b conjointly form a bivalent amino protective group, R.sub.2 denotes hydroxyl or a radical R.sub.2.sup.A which, together with the carbonyl grouping --C(.dbd.O)--, forms a protected carboxyl group, and R.sub.3 represents hydrogen or an organic radical which is linked via a carbon atom to the ring carbon atom, and 1-oxides thereof, as well as salts of such compounds having salt-forming groups, which compounds possess antibiotic properties, processes for the manufacture of such compounds, and also pharmaceutical formulations containing compounds of the formula I with pharmacological properties, and the use thereof, either as antibiotics, preferably in the form of pharmaceutical formulations, or as intermediate products.

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Ernest et al., Chem. Abs. 87, 201516t, (1977).

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