Boron tribromide → HCID 86689483, 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)-2-fluorophenethylcarbamate (70 mg, 0.14 mmol) was treated with BBr3 (1.0 M in CH2Cl2, 6 mL, 6 mmol) to afford the desired product as a white solid (26 mg, 48%); 1H NMR (500 MHz, CD3OD) δ 7.67 (d, J=5.4 Hz, 1H), 7.51 (t, J=7.7 Hz, 1H), 7.30 (s, 1H), 7.17-7.11 (m, 2H), 6.18 (d, J=5.4 Hz, 1H), 3.35-3.20 (m, 2H), 3.14-3.04 (m, 1H); ESI MS m/z 389 [C19H14ClFN2O2S+H]+; HPLC >99% (AUC), tR=8.93 min.

Provenance & Evidence