Trifluoroacetic acid → Trifluoroacetic acid

Participants

Reaction Steps

To (4aR,8aR)-6-benzyl 1-tert-butyl hexahydro-1H-pyrido[3,4-b][1,4]oxazine-1,6(7H)-dicarboxylate (388 mg, 1.03 mmol) dissolved in DCM (2.8 mL) was added TFA (0.57 mL). The reaction was stirred at room temperature for 16 hours. The mixture was concentrated to afford benzyl (4aR,8aR)-octahydro-6H-pyrido[3,4-b][1,4]oxazine-6-carboxylate as a TFA salt. MS ESI calc'd. for C15H20N2O3 [M+H]+ 277. found 277.

Provenance & Evidence