Trifluoroacetic acid → HCID 72303899, compound

Participants

Reaction Steps

To a solution of 644 mg of (3RS,4RS)—N-[(4-tert-butoxybenzyl)oxy]-3-(2,4-dichlorophenyl)-2-{(1SR,2SR)-2-[(mesyl)amino]cyclohexyl}-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxamide in 8.4 ml of dichloromethane was added 0.94 ml of trifluoroacetic acid under ice-cooling, followed by stirring at room temperature for 1 hour. The solution was concentrated under reduced pressure and then recrystallized from ethyl acetate to obtain 363 mg of (3RS,4RS)-3-(2,4-dichlorophenyl)-N-hydroxy-2-{(1SR,2SR)-2-[(mesyl)amino]cyclohexyl}-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxamide as a colorless crystal.

Provenance & Evidence