反应详情

Step 2 intermediate from Intermediate 19 (1.2 g, 2.412 mmol) was reacted with NaH (60% dispersion in mineral oil, 105 mg, 2.610) and 2-isobutoxy-3-methoxybenzaldehyde (546 mg, 2.412 mmol) in dry DMSO (10 ml) according to the procedure outlined in Intermediate 2, Step 3 to yield 5.5 g of the desired compound as a white solid; 1H NMR (300 MHz, CDCl3) δ 1.03 (d, J=6.6 Hz, 6H), 1.98-2.06 (m, 1H), 3.68 (d, J=6.6 Hz, 2H), 3.79 (s, 3H), 6.30 (s, 1H), 6.98-7.16 (m, 3H), 7.30-7.33 (m, 1H), 8.05 (d, J=16.2 Hz, 1H), 8.23 (s, 1H).