反应详情

TFA (0.86 mL, 11.12 mmol) was added to a solution of (2S,3S,4S)-2-(3-chloro-2-fluoro-benzylcarbamoyl)-4-fluoro-3-methoxy-pyrrolidine-1-carboxylic acid tert-butyl ester (450 mg, 1.12 mmol) in CH2Cl2 (20 mL). The reaction mixture was stirred overnight then was concentrated. The residue was triturated with Et2O (10 mL) to give a precipitate which was filtered off, washed with Et2O (10 mL) then dried under high vacuum. The absolute stereochemistry was confirmed by X-ray. tR (HPLC conditions f): 0.40 min; MS (UPLC): 349 [M+HCOO]−, 305 [M+H]+.

1. concentrationthen was concentrated
2. customThe residue was triturated with Et2O (10 mL)
3. customto give a precipitate which
4. filtrationwas filtered off
5. washwashed with Et2O (10 mL)
6. customthen dried under high vacuum
7. custom0.40 min