反应详情

Compound 31 was synthesized following a similar procedure as described for compound 28 above using as starting materials 2,4-dibenzyloxyacetophenone and 2,4,6-trimethoxybenzaldehyde. 1H-NMR (MeOD, 500 MHz): δ 6.822 (d, 1H, J=8.0 Hz), 6.250 (d, 1H, J=2.5 Hz), 6.197 (dd, 1H, J=2.5 & 8.0 Hz), 6.165 (s, 2H), 3.768 (s, 3H), 3.764 (s, 6H), 2.562 (t, 2H, J=7.5 Hz), 2.461 (t, 2H, J=7.5 Hz), 1.617-1.653 (m, 2H). 13C-NMR (MeOD, 125 MHz): δ 159.273 (C), 158.729 (2C), 155.556 (C), 155.449 (C), 129.655 (2CH), 120.426 (C), 111.382 (C), 105.789 (CH), 101.968 (CH), 90.285 (CH), 54.655 (2CH3), 54.274 (CH3), 29.716 (CH2), 29.064 (CH2), 22.142 (CH2).