Sodium hydride → HCID 15661276, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-mercaptobenzothiazole (0.26 g. 1.54 mmol) in dry tetrahydrofuran (5.0 ml) at -78° C. was added sodium hydride (98%) (0.0369 g. 1.54 mmol). followed by diphenylmethyl 7-phenoxyacetamido-3-(trifluoromethylsulfonyloxy)-3-cephem-4-carboxylate (1.0 gm, 1.54 mmol). The reaction was warmed up to -20° C. and stirred for 16 hours before quenching in 0.5 N solution of hydrochloric acid (5 ml). The aqueous layer was extracted with dichloromethane (3×5 ml), dried (magnesium sulfate) and evaporated in vacuo to give the title compound as an oil which was purified by flash chromatography (silica, 40% ethylacetate in haxanes); yield isolated 0.7 g (70%).

Provenance & Evidence