反应详情

温度

85 °C

Using General Procedure A: A suspension of 3,3″-dimethyl-1′,2′,3′,4′,5′,6′-hexahydro-cis-[2,2′;6′,2″]terpyridine (252 mg, 0.94 mmol), methanesulfonic acid 2-pyridin-2-yl-ethyl ester (approx. 4.9 mmol) and K2CO3 (1.30 g, 9.42 mmol) in DMF (5 mL) was heated at 85° C. for 2.5 d. Purification of the crude material by column chromatography on silica gel (CH2Cl2—CH3OH—NH4OH, 96:4:0 then 94:4:2) followed by radial chromatography on silica gel (1 mm plate, CH2Cl2—CH3OH—NH4OH, 25:1:1) provided 152 mg (43%) of COMPOUND 97 as a pale yellow oil. 1H NMR (CDCl3) δ 1.60-1.72 (m, 3H), 1.96-2.23 (m, 5H), 2.51 (s, 6H), 2.61-2.66 (m, 2H), 4.15 (d, 2H, J=12 Hz), 6.33-6.38 (m, 1H), 6.85 (dd, 1H, J=7.2, 5.1 Hz), 7.07 (dd, 2H, J=7.5, 4.8 Hz), 7.27 (dt, 1H, J=7.5, 1.5 Hz), 7.40 (d, 2H, J=7.5 Hz), 8.19 (d, 1H, J=4.8 hz), 8.42-8.47 (m, 2H); 13C NMR (CDCl3) δ 19.18, 25.52, 30.76, 34.77, 49.87, 63.61, 120.80, 122.22, 122.76, 131.72, 136.15, 138.83, 147.10, 149.18, 160.47, 161.42; ES-MS m/z 373 (M+H). Anal. Calcd. for C24H28N4.1.6 H2O: C, 71.83; H, 7.84; N, 13.96. Found: C, 71.84; H, 7.53; N, 13.65.

1. customPurification of the crude material by column chromatography on silica gel (CH2Cl2—CH3OH—NH4OH, 96:4:0