Boron tribromide → HCID 86689517, compound

Participants

Reaction Steps

Following General Procedure F, tert-butyl 2-chloro-4-(8-methoxy-6-methyl-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)phenethylcarbamate (120 mg, 0.24 mmol) was reacted with tribromoborane (1.0 M in methylene chloride, 1.45 mL, 1.45 mmol) to afford the desired product (52 mg, 57%) as a white solid: 1H NMR (500 MHz, MeOD) δ 7.64 (d, J=5.4 Hz, 1H), 7.54 (d, J=7.8 Hz, 1H), 7.37 (d, J=1.4 Hz, 1H), 7.23 (dd, J=7.7, 1.4 Hz, 1H), 7.08 (s, 1H), 6.19 (d, J=5.4 Hz, 1H), 3.42-3.14 (m, 4H), 2.56 (s, 3H); ESI MS m/z 385 [C20H17ClN2O2S+H]+; HPLC 98.2% (AUC), tR=8.55 min.

Provenance & Evidence