反应详情

To a solution of [(3R,4S)-3-[(R)-2-(tert-butyl-dimethyl-silanyloxy)-1-(5-chloro-pyridin-2-yloxy)-ethyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-1-yl]-(6-methyl-pyridazin-4-yl)-methanone (0.074 g, 0.119 mmol) dissolved in THF (4 mL) was added 0.014 mL (0.24 mmol) of acetic acid and 0.119 mL of TBAF (1.0M in THF). The reaction mixture was stirred over night at room temperature. The mixture was diluted with ethyl acetate and washed with water and aq. sodium bicarbonate solution subsequently. The separated organic phase was dried over sodium sulfate and concentrated in vaccuo after filtration. The residue was purified by TLC (SiO2, MeOH/DCM, 1:10) yielded 55 mg (91%) of the title compound as a light yellow oil. ES-MS m/e: 507.1 (M+H+).

1. washwashed with water and aq. sodium bicarbonate solution subsequently
2. dry with materialThe separated organic phase was dried over sodium sulfate
3. concentrationconcentrated in vaccuo
4. filtrationafter filtration
5. customThe residue was purified by TLC (SiO2, MeOH/DCM, 1:10)