反应详情

The same procedure as described for compound 20 was applied to 2-methoxy-2-phenylpiperidin (0.33 g, 1.73 mmol), compound 19 (0.4 g, 1.15 mmol), KI (0.57 g, 3.45 mmol) and K2CO3 (0.79 g, 5.75 mmol). Purification was carried out on a silica gel TLC plate that was developed in with a 5% methanolic NH3 (7 M NH3 in methanol/95% CH2Cl2. The product was isolated as pale yellow oil (59%). 1H NMR (CDCl3) δ 8.486 (m, 1H, Ar), 7.591 (m, 3H, Ar), 7.22 (dd, 1H, Ar), 7.135 (m, 3H, Ar), 7.017 (dd, 2H, Ar), 6.901 (dd, 1H, Ar), 6.819 (d, 1H, Ar), 3.781 (s, 3H, —OCH3), 3.764, (s, 2H, —CH2—), 3.691 (s, 2H, —CH2—), 3.002 (d, 2H, —CH2—), 2.939 (m, 1H, —CH—), 2.521 (t, 2H, —CH2—), 2.373 (t, 2H, —CH2—), 2.053 (m, 3H, —CH—CH2—), 1.769 (m, 6H), 1.354 (s, 9H, —C(CH3)3). Mass Spec.=502.34 (M+H)+.

1. customPurification