Trifluoroacetic acid → HCID 86689530, compound

Participants

Reaction Steps

Following General Procedure C, tert-butyl(1-(4-(6-chloro-8-methoxy-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)phenyl)cyclobutyl)methylcarbamate (25 mg, 0.05 mmol) was reacted with TFA (2.5 mL) to afford the desired product (16 mg, 80%) as a white solid: 1H NMR (500 MHz, MeOD) δ 7.66 (s, 1H), 7.55 (s, 1H), 7.47 (s, 2H), 7.34 (s, 2H), 6.04 (s, 1H), 3.77 (s, 3H), 3.47 (s, 2H), 2.68-2.54 (m, 2H), 2.47-2.35 (m, 2H), 2.31-2.20 (m, 1H), 2.12-2.02 (m, 1H); ESI MS m/z 426 [C23H21ClN2O2S+H]+; HPLC >99% (AUC), tR=9.87 min.

Provenance & Evidence