Hydrochloric Acid → (R)-9-(3-Fluoro-4-(1-(methylamino)propan-2-yl)phenyl)-8-methoxy-6-methylthieno[2,3-c]quinolin-4(5H)-one Hydrochloride

Participants

Reaction Steps

Following General Procedure D1, (R)-tert-butyl 2-(2-fluoro-4-(8-methoxy-6-methyl-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)phenyl)propyl(methyl)carbamate (50 mg, 0.10 mmol) was reacted with HCl in ether (5 mL) to afford the desired product (35 mg, 85%) as an yellow solid; 1H NMR (500 MHz, CD3OD) δ 7.63 (d, J=5.4 Hz, 1H), 7.53 (dt, J=28.7, 7.8 Hz, 1H), 7.29 (s, 1H), 7.17-7.04 (m, 2H), 6.10 (dd, J=31.6, 5.4 Hz, 1H), 3.75 (s, 3H), 3.68-3.24 (m, 3H), 2.78 (d, J=13.3 Hz, 3H), 2.64 (s, 3H), 1.52 (dd, J=7.0, 3.2 Hz, 3H); ESI MS m/z 411 [C23H23FN2O2S+H]+; HPLC 98.2% (AUC), tR=11.79 min.

Provenance & Evidence