Boron tribromide → HCID 86689522, 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)phenethyl(methyl)carbamate (60 mg, 0.12 mmol) was reacted with tribromoborane (1.0 M in methylene chloride, 0.72 mL, 0.72 mmol) to afford the desired product (22 mg, 50%) as a white solid: 1H NMR (500 MHz, DMSO-d6) δ 10.77 (s, 1H), 9.72 (s, 1H), 8.72 (s, 1H), 7.76 (d, J=5.4 Hz, 1H), 7.42 (d, J=8.1 Hz, 2H), 7.31 (s, 1H), 7.24 (d, J=8.1 Hz, 2H), 5.85 (d, J=5.4 Hz, 1H), 3.30-3.23 (m, 2H), 3.09-3.02 (m, 2H), 2.65 (s, 3H); ESI MS m/z 385 [C20H17ClN2O2S+H]+; HPLC >99% (AUC), tR=9.03 min.

Provenance & Evidence