Trifluoroacetic acid → 2-Amino-2-methyl-N-((R)-1-((4S,5R)-2-methyl-1-oxo-4-phenyl-2,7-diazaspiro[4.5]decan-7-yl)-1-oxo-4-phenoxybutan-2-yl)propanamide

Participants

Reaction Steps

Tert-butyl 2-methyl-1-((R)-1-((4S,5R)-2-methyl-1-oxo-4-phenyl-2,7-diazaspiro[4.5]decan-7-yl)-1-oxo-4-phenoxybutan-2-ylamino)-1-oxopropan-2-ylcarbamate (38.7 mg; 0.064 mmol) was solubilised in DCM (0.5 ml). TFA (0.125 ml; 1.622 mmol) was added and the solution stirred at RT for 20 minutes before being concentrated in vacuo. The residual oil was dissolved in methanol (1 ml) and passed through a 1 g SCX-2 cartridge eluting with 2M NH3 in methanol (4 ml. Evaporation gave the title compound.

Provenance & Evidence