反应详情

tert-butyl 1-(5-(6-(3-chloro-5-fluoro-4-hydroxyphenyl)-3-propionylquinolin-4-ylamino)pyridin-2-yl)piperidin-3-ylcarbamate (32 mg, 0.051 mmol) was dissolved in dichloromethane (5 mL). To this solution was added a 2.0 M HCl solution in diethyl ether (2 mL) the mixture was stirred for 16 h at room temperature where a precipitate formed. The precipitate was filtered off, washed with dichloromethane (10 mL), dried under vacuum to obtain the desired product as the HCl salt (16 mg, 49%) as an orange solid: 1H NMR (500 MHz, MeOD) δ 9.28 (s, 1H), 8.23 (m, 2H), 8.01 (m, 2H), 7.75 (d, J=8.5 Hz, 1H), 7.19 (d, J=8.4 Hz, 1H), 7.10 (t, J=4.9 Hz, 2H), 4.54 (s, 1H), 4.04 (d, J=13.0 Hz, 1H), 3.36 (m, 3H), 3.24 (q, J=13.3, 6.2 Hz, 1H), 2.20 (m, 1H), 1.97 (m, 1H), 1.74 (m, 2H), 1.26 (t, J=6.6 Hz, 3H); ESI MS m/z 520, [C28H27ClFN5O2+H]+; HPLC 98.7% (AUC), tR=10.05 min.

1. customformed
2. filtrationThe precipitate was filtered off
3. washwashed with dichloromethane (10 mL)
4. customdried under vacuum