Trifluoroacetic acid → 2-Amino-N-((2R)-3-(benzyloxy)-1-(2-methyl-1-oxo-4-phenyl-2,7-diazaspiro[4.5]decan-7-yl)-1-oxopropan-2-yl)-2-methylpropanamide

Participants

Reaction Steps

tert-Butyl 1-((2R)-3-(benzyloxy)-1-(2-methyl-1-oxo-4-phenyl-2,7-diazaspiro[4.5]decan-7-yl)-1-oxopropan-2-ylamino)-2-methyl-1-oxopropan-2-ylcarbamate (1.18 g, 1.945 mmol) in DCM (15 ml) was treated with TFA (7 ml, 91 mmol) and stirred at RT for 1 hour. The solvent was removed in vacuo and the residue was partitioned between EtOAc (200 ml) and sat. sodium bicarbonate solution (100 ml). The organic portion was dried (MgSO4) and concentrated in vacuo to afford the title compound as a diastereomeric mixture;

Provenance & Evidence