Pyridine → HCID 22812919, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of diphenylmethyl α-[4(R)-acetonyloxy-3(R)-phenylacetamido-2-oxo-azetidin-1-yl]glycolate (2.136 g) in anhydrous methylene chloride (20 ml) are added thionyl chloride (0.90 ml) and pyridine (0.33 ml) with stirring at 0° C. After stirring for 1 hour at 0° C., the mixture is poured into ice water, and extracted with ethyl acetate. The organic layer is washed with water, dried over sodium sulfate, and evaporated under reduced pressure to give the crude product of a mixture of epimers at position α.

Provenance & Evidence