反应详情

A solution of cyclopropyl-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yloxy]-acetic acid methyl ester (0.068 g, 0.16 mmol) and 7M ammonia in methanol (20 mL) was stirred at RT for 18 h then concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, gradient 0 to 10% methanol in ethyl acetate) to give 549 (0.033 g, 50%). LCMS: RT=3.52 min, [M+H]+=409. 1H NMR 400 MHz (DMSO-d6): δ 8.28 (1 H, d, J=8.97 Hz), 7.89 (1 H, d, J=0.64 Hz), 7.85 (1 H, s), 7.54 (1 H, s), 7.25 (1 H, s), 6.73 (1 H, dd, J=8.99, 2.59 Hz), 6.49 (1 H, d, J=2.57 Hz), 5.89-5.88 (1 H, m), 4.52-4.44 (4 H, m), 3.97 (1 H, d, J=8.20 Hz), 1.48 (3 H, d, J=1.16 Hz), 1.46 (3 H, d, J=1.16 Hz), 1.26-1.25 (1 H, m), 0.61-0.54 (3 H, m), 0.44-0.43 (1 H, m)

1. concentrationthen concentrated in vacuo