反应详情

The title compound was prepared as described in General Method 6 from 1.9 mmol of 3-bromo-5,6-dihydro-4-hydroxy-6-phenyl-6-(2-phenylethyl)-2H-pyran-2-one (prepared in example BBB), 2.2 mmol of methyl thiosalicylate and 2.1 mmol of piperidine in 30 mL of dichloromethane. The crude product was chromatographed on silica gel, eluting first with chloroform and then with 5% methanol in chloroform, to give the title compound (m.p. 91°-92° C.). 1H NMR (DMSO-d6) δ2.25 (m, 2H), 2.38 (m, 1H), 2.62 (m, 1H), 3.44 (q, 2H), 3.82 (s, 3H), 6.06 (bd, 1H), 6.90 (t, 1H), 7.05-7.52 (m, 11H), 7.81 (dd, 1H).

1. customThe title compound was prepared
2. customThe crude product was chromatographed on silica gel
3. washeluting first with chloroform