反应详情

The title compound was synthesized by condensation of Intermediate 5 (400 mg, 1.289 mmol) with 2-isopentyloxy-3-methoxybenzaldehyde (400 mg, 1.812 mmol) in presence of sodium ethoxide (163 mg, 2.418 mmol) in ethanol (15 ml) according to the procedure described in Example 24 to give 308 mg of the desired product as an off-white solid; 1H NMR (300 MHz, DMSO-d6) δ 0.92 (d, J=6.3 Hz, 6H), 1.42 (q, J=6.3 Hz, 2H), 1.80-1.90 (m, 1H), 3.77 (s, 3H), 3.84 (t, J=6.3 Hz, 2H), 6.90-7.00 (m, 4H), 7.51 (d, J=4.8 Hz, 1H), 7.58 (d, J=7.8 Hz, 2H), 7.83 (d, J=7.8 Hz, 2H), 8.01 (d, J=4.8 Hz, 1H), 8.09 (d, J=15.6 Hz, 1H); ESI-MS (m/z) 515.52 (M+H)+.