反应详情

A solution of sodium periodate (138 mg, 0.645 mmol) in water (5.0 mL) was added over a 10 min period, via pipet, to a vigorously stirred solution of the N-(4-(4-chloro-1H-imidazol-1-yl)-3-methoxyphenyl)-9-(4-fluorophenyl)-7-methylene-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[1,5-a]azepin-2-amine (100 mg, 0.215 mmol, from example 133) and osmium tetroxide (5.47 mg, 0.022 mmol) in THF (5.0 mL). The reaction was stirred for 1 h and then diluted with water (150 mL)/brine (100 mL) and extracted with ethyl acetate (3×). The combined organic layers were washed with brine, dried over sodium sulfate, and concentrated in vacuo. The crude product was purified using reverse phase preparatory HPLC (MeOH/water/trifluoroacetic acid) to afford the titled compound as the TFA salt (60 mg, 47% yield). LC-MS (M+H)+ 467.1. 1H NMR (500 MHz, CHLOROFORM-d) δ ppm 9.24 (1 H, br. s.), 8.12 (1 H, d, J=1.5 Hz), 7.33 (1 H, d, J=2.1 Hz), 7.19-7.24 (1 H, m), 7.07-7.18 (5 H, m), 4.71 (1H, dd, J=8.5, 4.0 Hz), 4.54-4.64 (1 H, m), 4.45-4.54 (1 H, m), 3.90 (3 H, s), 3.44 (1 H, dd, J=14.3, 8.5 Hz), 3.16 (1 H, dd, J=14.3, 4.0 Hz), 2.89-3.06 (2 H, m).

1. extractionextracted with ethyl acetate (3×)
2. washThe combined organic layers were washed with brine
3. dry with materialdried over sodium sulfate
4. concentrationconcentrated in vacuo
5. customThe crude product was purified