Boron tribromide → HCID 86689482, compound

Participants

Reaction Steps

Following General Procedure F, tert-butyl 4-(6-chloro-8-methoxy-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)phenethylcarbamate (410 mg, 0.76 mmol) was treated with BBr3 (1.0 M in CH2Cl2, 10 mL, 10 mmol) to afford the desired product as an off-white solid (58 mg, 18%): 1H NMR (500 MHz, CD3OD) δ 7.62 (d, J=5.4 Hz, 1H), 7.53-7.45 (m, 3H), 7.31 (d, J=8.1 Hz, 2H), 6.10 (d, J=5.4 Hz, 1H), 3.31-3.28 (m, 2H), 3.11 (t, J=7.6 Hz, 2H); ESI MS m/z 415 [C19H15BrN2O2S+H]+; HPLC 94.9% (AUC), tR=9.02 min.

Provenance & Evidence