反应详情

温度

100 °C

A solution of 7,8-bis(4-chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one, (40 mg, 0.11 mmol), prepared as described in Example 1, cyclohexene oxide (12 mg, 0.12 mmol) and K2CO3 (35 mg, 0.25 mmol) in DMF (1 ml), was heated at 100° C. for 3 hours. After this time the solution was cool to RT and diluted with ethyl acetate. The resultant solution was washed with water. The organic layer was dried over Na2SO4, filtered and concentrated. The crude product was purified by preparative HPLC to give the title compound, 7,8-bis(4-chlorophenyl)-2-(2-hydroxycyclohexyl)-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-(24.1 mg, 48%) as yellow solid. MS M+H=455; 1H NMR (CDCl3) δ 8.17 (1H), 7.33 (6H), 7.08 (2H), 4.26 (1H), 3.98 (1H), 2.17 (1H), 1.99 (1H), 1.82 (3H), 1.50-1.30 (3H).

1. temperatureAfter this time the solution was cool to RT
2. washThe resultant solution was washed with water
3. dry with materialThe organic layer was dried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated
6. customThe crude product was purified by preparative HPLC