Diisopropylethylamine → HCID 20607320, compound

Participants

Reaction Conditions

Reaction Steps

0.25 ml of diisopropylethylamine are added to 650 mg of 4-[(3-bromo-phenyl)amino]-6-(2-bromoethoxy)-7-methoxy-quinazoline and 1.10 g of tert.butyl (S)-(2-hydroxy-propylamino)-acetate in 15 ml of acetonitrile. The reaction mixture is stirred overnight at 50° C. Since no reaction can be detected, the reaction mixture is concentrated by evaporation, combined with 20 ml of N,N-dimethylformamide and stirred for eight hours at 60° C. Then the temperature is increased to 80° C. After another eight hours the reaction is complete. The reaction mixture is concentrated by evaporation and chromatographed over a silica gel column with ethyl acetate as eluant. The desired product is obtained as a white solid.

Provenance & Evidence