反应详情

The product of Example 309G (32.6 mg, 0.13 mmol) and the product of Example 350C (53 mg, 0.13 mmol) were reacted in toluene (3 mL) at 100° C. for 3 hours. The resulting precipitate was collected by filtration and washed with methanol and diethyl ether to give the title compound (45 mg, 61.5%). 1H NMR (300 MHz, DMSO-d6) δ 3.32 (s, 3 H), 4.61 (s, 2 H), 4.70 (s, 2 H), 7.28 (s, 1 H), 7.42 (m, 1 H), 7.70 (d, J=4.04 Hz, 2 H), 8.06 (m, 2 H), 8.11 (m, 2 H), 8.22 (d, J=8.09 Hz, 1 H). MS (ESI−) m/z 565 (M−H)−.

1. filtrationThe resulting precipitate was collected by filtration
2. washwashed with methanol and diethyl ether