Hydrochloric Acid → (R)-9-(4-(1-Aminopropan-2-yl)-3-fluorophenyl)-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)propylcarbamate (150 mg, 0.30 mmol) was reacted with HCl in ether (15 mL) to afford the desired product (105 mg, 81%) as an off-white solid: 1H NMR (500 MHz, MeOD) δ 7.63 (dd, J=5.4, 2.4 Hz, 1H), 7.52 (dt, J=24.8, 7.8 Hz, 1H), 7.30 (s, 1H), 7.09 (m, 2H), 6.11 (dd, J=26.4, 5.4 Hz, 1H), 3.76 (s, 3H), 3.63-3.43 (m, 1H), 3.42-3.16 (m, 2H), 2.64 (s, 3H), 1.51 (d, J=7.0 Hz, 3H). ESI MS m/z 397 [C22H21FN2O2S+H]+; HPLC >99% (AUC), tR=11.57 min.

Provenance & Evidence