反应详情

To a mixture of rac-4-({[(2S,3S,4S)-2,3-bis-(4-chloro-2-fluoro-phenyl)-3-cyano-4-(2,2-dimethyl-propyl)-pyrrolidine-1-carbonyl]-amino}-methyl)-benzoic acid methyl ester (105.0 mg, 0.17 mmol) in THF/MeOH (1.8 mL/0.6 mL) was added 4 N LiOH (0.6 mL), and the reaction mixture was stirred at rt for 2 hrs. The reaction mixture was concentrated and quenched with 2 N H2SO4, extracted with EtOAc, and washed with water, brine. The organic phase was separated, and dried over Na2SO4. The mixture was then concentrated and purified by RP-HPLC to give rac-4-({[(2S,3S,4S)-2,3-bis-(4-chloro-2-fluoro-phenyl)-3-cyano-4-(2,2-dimethyl-propyl)-pyrrolidine-1-carbonyl]-amino}-methyl)-benzoic acid (100.1 mg, 97.6%). HRMS (ES+) m/z Calcd for C31H29Cl2F2N3O3+H [(M+H): 600.1627; Found: 600.1628.

1. concentrationThe reaction mixture was concentrated
2. customquenched with 2 N H2SO4
3. extractionextracted with EtOAc
4. washwashed with water, brine
5. customThe organic phase was separated
6. dry with materialdried over Na2SO4
7. concentrationThe mixture was then concentrated
8. custompurified by RP-HPLC