反应详情

To a stirred solution of [((3R)-1-{2-[3-fluoro-6-(methyloxy)-1,5-naphthyridin-4-yl]ethyl}-3-pyrrolidinyl)methyl]amine (0.50 g, 1.65 mmole) in dry CH2Cl2 (25 mL) at RT was added triethylamine (0.34 mL, 2.48 mmole) and 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-sulfonyl chloride (0.47 g, 1.80 mmole). After 24 h, the reaction solution was concentrated under vacuum. Purification on silica (CHCl3/MeOH, 9:1 containing 5% NH4OH) afforded the title compound (0.80 g, 91%) as light yellow solid: 1H NMR (400 MHz, CDCl3) δ 8.59 (s, 1H), 8.16 (d, J=9.0 Hz, 1H), 7.34 (m, 3H), 7.03 (d, J=9.0 Hz, 1H), 4.04 (s, 3H), 3.47 (s, 2H), 3.34 (m, 2H), 2.95 (m, 3H), 2.79 (m, 2H), 2.61 (m, 1H), 2.52 (m, 2H), 2.34 (m, 1H), 1.97 (m, 1H), 1.55 (m, 1H). LC-MS (ES) m/e 532 (M+H)+.

1. concentrationthe reaction solution was concentrated under vacuum
2. customPurification on silica (CHCl3/MeOH, 9:1 containing 5% NH4OH)