反应详情

A solution of tert-butyl 2-(4-(benzyloxy)-2-oxopyridin-1(2H)-yl)-10-methyl-7,8,9,10-tetrahydropyrido[3′,2′:4,5]pyrrolo[3,2-c]azepine-6(5H)-carboxylate (140 mg, 0.028 mmol) in 1.25 M HCl in MeOH (6.0 mL) was stirred under N2 at ambient temperature for 18 h. Additional 1.25 M HCl in MeOH was added, and the solution was stirred at ambient temperature for 18 h. The solution was concentrated to dryness to yield the title compound (130 mg, quant.) as a light-yellow powder: mp 328-332° C.; 1H NMR (500 MHz, DMSO-d6) δ 9.20 (s, 2H), 8.16 (d, J=8.0 Hz, 1H), 7.81 (d, J=8.0 Hz, 1H), 7.48-7.41 (m, 4H), 7.38-7.34 (m, 2H), 6.17 (dd, J=7.5, 2.5 Hz, 1H), 5.98 (d, J=2.5 Hz, 1H), 5.17 (s, 2H), 4.46 (s, 2H), 3.75 (s, 3H), 3.44-3.43 (m, 2H), 3.14-3.12 (m, 2H), 2.09-2.07 (m, 2H); ESI MS m/z 401 [M+H]+; HPLC (Method A)>99% (AUC), tR=13.3 min.

1. concentrationThe solution was concentrated to dryness