Boron tribromide → HCID 86689478, compound

Participants

Reaction Steps

Following General Procedure F, tert-butyl 1-(4-(6-chloro-8-methoxy-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)phenyl)ethylcarbamate (50 mg, 0.10 mmol) was treated with BBr3 (1.0 M in CH2Cl2, 2 mL, 2 mmol) to afford the desired product (21 mg, 58%) as a light yellow solid (21 mg, 58%): 1H NMR (500 MHz, CD4OD) δ 7.65 (dt, J=5.2, 3.4 Hz, 2H), 7.59 (d, J=5.4 Hz, 1H), 7.41 (dt, J=4.0, 2.6 Hz, 2H), 7.30 (s, 1H), 6.07 (d, J=: 5.4 Hz, 1H), 4.62 (q, J=6.8 Hz, 1H), 1.76 (d, J=6.9 Hz, 3H); ESI MS m/z 371 [C19H15ClN1O2S+H]+; HPLC 97.8% (AUC), tR=9.72 min.

Provenance & Evidence