反应详情

From 9 (488 mg, 2 mmol) and 3-methoxybenzylzinc chloride (0.5 M in THF, 10 mL, 5 mmol) by the same method as 10a; white powder (274 mg, 49%): mp 81-82° C.; 1H NMR (CDCl3) δ 3.81 (s, 2H, OMe), 3.82 (s, 2H, CH2), 4.25 (br s, NH2), 6.67 (d, J=8.0 Hz, 1H, H-3), 6.68 (s, 1H, H-2′), 6.72-6.77 (m, 2H, H4′ and H-6′), 7.15 (d, J=8.0 Hz, H-4), 7.19 (s, 1H, H-6), 7.22 (t, J=7.6 Hz, 1H, H-5′).