Hydrochloric Acid → 9-[4-(Aminomethyl)phenyl]-6-fluoro-8-methoxythieno[2,3-c]quinolin-4(5H)-one Hydrochloride

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Reaction Steps

Following General Procedure D-1, tert-butyl 4-(6-fluoro-8-methoxy-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)benzylcarbamate (15 mg, 0.030 mmol) was reacted with HCl (2 N in diethyl ether, 1.5 mL) to afford the desired product (10 mg, 90%) as a white solid: 1H NMR (500 MHz, CD3OD) δ 7.63 (d, J=8.1 Hz, 2H), 7.58 (d, J=5.4 Hz, 1H), 7.36 (d, J=8.1 Hz, 2H), 7.32 (d, J=12.7 Hz, 1H), 6.04 (d, J=5.4 Hz, 1H), 4.27 (s, 2H), 3.72 (s, 3H); ESI MS m/z 355 [C19H15FN2O2S+H]+; HPLC 99% (AUC), tR=10.64 min.

Provenance & Evidence