反应详情

To a mixture of tert-butyl 5-(6-(2-chloroethoxy)-7-methoxy-2-(3-(2-morpholinoacetamido)phenyl)quinazolin-4-ylamino)-1H-indazole-1-carboxylate (0.280 g, 0.407 mmol) in DMF (2 mL) and THF (3 mL) was added pyrrolidine (0.8 mL). The resultant mixture was heated at 85° C. for 2 h, upon which it was allowed to cool to RT, the volatiles were removed in vacuo and the residue was taken up in ice-water (200 mL). The resulting precipitate was collected via filtration and subjected to preparative TLC (SiO2, CH2Cl2:MeOH 83:17) to give tert-butyl 5-(7-methoxy-2-(3-(2-morpholinoacetamido)-phenyl)-6-(2-(pyrrolidin-1-yl)ethoxy)quinazolin-4-ylamino)-1H-indazole-1-carboxylate (0.085 g, 0.118 mmol, 29%). HPLC retention time 3.81 minutes.

1. customthe volatiles were removed in vacuo
2. filtrationThe resulting precipitate was collected via filtration