反应详情

温度

85 °C

A mixture of tert-butyl 5-(6-hydroxy-7-methoxy-2-(3-nitrophenyl)quinazolin-4-ylamino)-1H-indazole-1-carboxylate (0.475 g, 0.898 mmol), 2-chloro-N,N-dimethylethanamine (0.28 g, 1.94 mmol) and K2CO3 (1.18 g, 2.54 mmol) in DMF (8 mL) was heated at 85° C. for 3 h. The volatiles were removed in vacuo and the residue was taken up in CHCl3/MeOH. The solid was removed via filtration and the filtrate was concentrated in vacuo. The residue was purified by column chromatography (SiO2, CHCl3/MeOH 93:7 then 90:10) to give tert-butyl 5-(6-(2-(dimethylamino)ethoxy)-7-methoxy-2-(3-nitrophenyl)quinazolin-4-ylamino)-1H-indazole-1-carboxylate. (0.087 g, 0.145 mmol, 16%). MS 600.4 (M+1).

1. customThe volatiles were removed in vacuo
2. customThe solid was removed via filtration
3. concentrationthe filtrate was concentrated in vacuo
4. customThe residue was purified by column chromatography (SiO2, CHCl3/MeOH 93:7