反应详情

To a solution of carbonate 16 (15 mg, 0.026 mmol) in CH3CN (2 mL) was added diethyl(aminopropyl)phosphonate (16 mg, 0.052 mmol) and diisopropylethylamine (11 μL, 0.065 mmol). After the reaction mixture was stirred for 16 h at room temperature, the mixture was concentrated under reduced pressure. The residue was purified by preparative thin layer chromatography (eluting 5% MeOH/CH2Cl2) to give {3-[5-(3,5-dichloro-phenylsulfanyl)-4-isopropyl-1-pyridin-4-ylmethyl-1H-imidazol-2-ylmethoxycarbonylamino]-propyl}-phosphonic acid diethyl ester 23 (13 mg, 79%) as a pale yellow oil. 1H NMR (300 MHz, CDCl3) δ 8.44 (d, 2H), 7.04 (t, 1H), 6.80 (d, 2H), 6.68 (d, 2H), 5.26 (s, 2H), 5.18 (s, 2H), 5.08 (bt, 1H), 4.08 (m, 4H), 3.15 (m, 3H), 1.72 (m, 4H), 1.31 (m, 12H). 31P NMR (300 MHz, CDCl3) δ 31.5

1. concentrationthe mixture was concentrated under reduced pressure
2. customThe residue was purified by preparative thin layer chromatography (eluting 5% MeOH/CH2Cl2)