反应详情

To a solution of 3-(2-methyl-2H-pyrazol-3-yl)-4-(2-thiomorpholin-4-yl-ethoxy)-phenylamine (0.14 g, 0.443 mmol) in 2.0 mL/1.0 mL DCM/Pyridine mixture was added isopropyl chloroformate (0.06 g, 0.487 mmol), and the reaction mixture was stirred at room temperature overnight. The DCM/Pyridine mixture was evaporated to give a brown residue. The residue was dissolved in 5.0 mL of DMSO and was subjected to purification on RP-HPLC. The proper fractions were collected and lyophilized to produce [3-(2-Methyl-2H-pyrazol-3-yl)-4-(2-thiomorpholinyl-ethoxy)-phenyl]-carbamic acid isopropyl ester as a solid in 84% yield. LCMS m/z (%) 405 (M+H, 100). 1H NMR (400 MHz, Acetone-d6) δ: 8.58 (bs, 1H), 7.66 (dd, J=8.4 and 2.6 Hz, 1H), 7.55 (s, 1H), 7.47 (d, J=1.81 Hz, 1H), 7.28 (d, J=1.8 Hz, 1H), 7.16 (d, J=8.9 Hz, 1H), 6.05 (d, J=1.86 Hz, 1H), 4.92-4.98, (m, 1H), 4.53 (t, J=4.3 Hz, 2H), 3.72 (s, 3H), 3.59 (dd, J=9.63 and 4.86 Hz, 2H), 3.28-3.42 (m, 4H), 2.93-2.99 (m, 4H), 1.25 (d, J==6.12 Hz, 6M).

1. customThe DCM/Pyridine mixture was evaporated
2. customto give a brown residue
3. customwas subjected to purification on RP-HPLC
4. customThe proper fractions were collected