反应详情

In a 50 mL round-bottomed flask, tert-butyl 4-((2R,3S,4R,5S)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolidine-2-carboxamido)-2-fluorobenzoate (170 mg, 257 μmol, Eq: 1.00) was combined with CH2Cl2 (3 mL) to give a colorless solution. TFA (3 ml) was added and the reaction was stirred for 6 hours. The crude reaction mixture was concentrated in vacuum, added DCM and concentrated again. Recrystallization from diethyl ether and hexanes afforded a white solid (148 mg, 93% yield). MS (ES+) m/z Calcd: [(M+H)+]: 604. found: 604.

1. customto give a colorless solution
2. customThe crude reaction mixture
3. concentrationwas concentrated in vacuum
4. additionadded DCM
5. concentrationconcentrated again
6. customRecrystallization from diethyl ether and hexanes