反应详情

Intermediate 42 (76 mg, 0.25 mmol) was reacted with cyclopropane carboxylic acid by Method E. Flash chromatography eluted with EtOAc and recrystallization from EtOAc:hexane afforded compound 52 (47 mg, 51%) as a white solid: Mp 195-196° C. 1H NMR (500 MHz, DMSO-d6) δ 8.56 (s, 1H), 7.47 (d, J=9.0 Hz, 2H), 7.22 (d, J=8.7 Hz, 2H), 6.25 (d, J=7.7 Hz, 1H), 4.15 (t, J=14.8 Hz, 2H), 3.77-3.68 (m, 1H), 3.25 (t, J=11.5 Hz, 1H, obscured), 2.81 (t, J=11.1 Hz, 1H), 1.98 (m, 1H), 1.93-1.75 (m, 2H), 1.41-1.17 (m, 2H), 0.75-0.65 (m, 4H). Purity 100%. HRMS calculated for C17H20F3N3O3+H+ 372.1535. found (ESI(+), [M+H]) 372.1546.

1. washFlash chromatography eluted with EtOAc and recrystallization from EtOAc