Trifluoroacetic acid → HCID 59215863, compound

Participants

Reaction Steps

To a solution of the crude 1,1-dimethylethyl 3-({[(1S)-1-(hydroxymethyl)-2-(methyloxy)-2-oxoethyl]amino}carbonyl)-4-thiomorpholinecarboxylate (D118, 3.87 g) in 44 ml of dichloromethane were added under N2, at r.t., 22 ml of TFA. The reaction mixture was stirred at room temperature for 3 hrs. The solvents were removed under reduced pressure and the residue was purified on a SCX cartridge. The fraction eluted with 2M methanolic ammonia was evaporated to dryness and the residue was dissolved in MeOH and refluxed for 20 hrs.

Provenance & Evidence