反应详情

3.87 g of 2-tert-butyl-4-cyclobutyl-6-piperazin-1-yl-pyrimidine (14.1 mmol) were stirred in 30 ml of dimethylformamide at room temperature. 3.18 g of triethylamine (63.1 mmol), 0.235 g of sodium iodide (1.57 mmol), 3.01 g of (S)-(+)-1-acetoxy-3-bromo-2-methyl-propane (15.7 mmol) were added. The reaction mixture was stirred for 16 h at room temperature. Stirring was continued for 2 h at 95-105° C. The dimethylformamide was removed by evaporation under reduce pressure. The residue was partitioned between 100 ml of dichloromethane and 100 ml of water. The organic layer was separated, dried over magnesium sulfate and evaporated under reduced pressure to give the crude product as a brownish oil (5.81 g).

1. stirringStirring
2. waitwas continued for 2 h at 95-105° C
3. customThe dimethylformamide was removed by evaporation
4. customThe residue was partitioned between 100 ml of dichloromethane and 100 ml of water
5. customThe organic layer was separated
6. dry with materialdried over magnesium sulfate
7. customevaporated under reduced pressure