Trifluoroacetic acid → HCID 70869014, compound

Participants

Reaction Conditions

Reaction Steps

1,1-dimethylethyl ((1R)-1-{[(6-{[3-(1-methylethyl)phenyl]oxy}-3-pyridinyl)amino]carbonyl}propyl)carbamate (Intermediate 69, 1.28 g) was dissolved in 18 mL of dry dichloromethane. To this solution at 0° C. under argon was added dropwise 30 equivalents of TFA (7.15 mL, 93 mmol). The reaction was stirred during 3 hours at 0° C. The reaction mixture was evaporated. The residue obtained was purified by SCX on a 50 g cartridge. The cartridge was washed with 3 CV of methanol, then the compound was adsorbed on the cartridge, washed with 5 CV of methanol and desorbed with 2 CV of methanolic ammonia (1N). After evaporation of the volatiles, the title compound was obtained (932 mg).

Provenance & Evidence