反应详情

Prepared from 1-(4-methoxybenzyl)-3-methyl-1H-pyrazolo[3,4-b]pyridin-4-ol (0.150 g, 0.557 mmol; prepared as in Example 5, Step B) and 1-fluoro-2-methyl-4-nitrobenzene (0.0864 g, 0.557 mmol) according to the procedure of Example 13, Step A. The crude product was purified by Biotage 40S column eluting with 3:1 hexane/EtOAc then EtOAc to obtain the product (107 mg, 48%) as a off white solid. 1H NMR (CDCl3, 400 MHz) δ 8.33 (d, J=5.5 Hz, 1H), 8.25 (m, 1H), 8.15 (m, 1H), 7.35 (d, J=8.6 Hz, 2H), 7.17 (d, J=9.0 Hz, 1H), 6.84 (d, J=8.6 Hz, 2H), 6.18 (d, J=5.5 Hz, 1H), 5.57 (s, 2H), 3.77 (s, 3H), 2.64 (s, 3H), 2.36 (s, 3H). LRMS (esi pos) m/e 405 (M+1).

1. customThe crude product was purified by Biotage 40S column
2. washeluting with 3:1 hexane/EtOAc