Trifluoroacetic acid → (4S,7S,10aS)-4-amino-7-vinylhexahydro-2H-pyrido[2,1-b][1,3]thiazepin-5(7H)-one trifluoroacetate

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Reaction Steps

To a solution of tert-butyl (4S,7S,10aS)-5-oxo-7-vinyloctahydro-2H-pyrido[2,1-b][1,3]thiazepin-4-ylcarbamate (44 mg, 0.13 mmol) in DCM (1 mL) was added TFA (1.0 mL, 13 mmol). The reaction was stirred at rt for 1 hr. The reaction mixture was concentrated and dried under high vacuum to afford (4S,7S,10aS)-4-amino-7-vinylhexahydro-2H-pyrido[2,1-b][1,3]thiazepin-5(7H)-one trifluoroacetate (46 mg, 0.134 mmol, 100% yield) as an oil. Anal. Calcd. for C11H18N2OS m/z 226.3. found: 227.1 (M+H)+.

Provenance & Evidence