反应详情

温度

23 °C

To a solution of 2-{[(1aS,5aS)-2-(4-chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonyl]-amino}-3-fluoro-2-fluoromethyl-propionic acid methyl ester (130 mg, 0.316 mmol) in THF (2 mL) and MeOH (0.200 mL) was added sodium borohydride (23.94 mg, 0.633 mmol). The reaction was stirred at 23° C. for 2 h. Saturated aqueous NaHCO3 (15 mL) was added. The mixture was extracted with dichloromethane (3×15 mL). The combined organic extracts were dried (MgSO4), filtered, then concentrated. The residue was purified by silica gel flash chromatography to give the title compound (106 mg) as a white solid. LCMS m/z=383.2 [M+H]+; 1H NMR (400 MHz, CDCl3) δ 0.46 (td, J=4.6, 3.5 Hz, 1H), 1.27 (td, J=8.0, 4.9 Hz, 1H), 2.25-2.31 (m, 1H), 2.80-2.85 (m, 1H), 2.89 (d, J=16.9 Hz, 1H), 2.99 (dd, J=16.6, 6.3 Hz, 1H), 3.96 (d, J=5.9 Hz, 2H), 4.25 (t, J=6.8 Hz, 1H), 4.55-4.84 (m, 4H), 7.23 (dd, J=5.3, 1.8 Hz, 1H), 7.27 (s, 1H), 7.92 (d, J=1.6 Hz, 1H), 8.36 (d, J=5.3 Hz, 1H).

1. extractionThe mixture was extracted with dichloromethane (3×15 mL)
2. dry with materialThe combined organic extracts were dried (MgSO4)
3. filtrationfiltered
4. concentrationconcentrated
5. customThe residue was purified by silica gel flash chromatography