Novel intermediates for .beta.-lactams

Details Novel intermediates for .beta.-lactams Novel intermediates for .beta.-lactams

1979-01-25

1981-01-13

Randolph, John D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

260239A, 544 90, 544162, 544175, 424244, C07D26512

Patent

active

042450896

ABSTRACT:
Compounds of the formula (III): ##STR1## wherein R.sub.1 is alkyl of up to 3 carbon atoms and R.sub.2 is alkyl of up to 3 carbon atoms optionally joined to R.sub.1 so that R.sub.1 and R.sub.2 and the carbon atom to which they are attached form a spiro-cyclopentyl or spiro-cyclohexyl ring, and wherein the configuration about the .beta.-lactam ring is trans, are useful in the preparation of antibacterial .beta.-lactam compounds.
A process for the preparation of the compounds of the formula (III), is also desired.

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