反应条件
1: butyric acid With lithium diisopropyl amide in tetrahydrofuran T=-15 - -5°C; Inert atmosphere; 2: With N,N'-dimethyl-N,N'-propyleneurea in tetrahydrofuran T=5°C; 0.5 h; 3: methyl iodide in tetrahydrofuran T=20°C; 2 h;
参考文献
Journal of Medicinal Chemistry, , vol. 53, # 10 p. 4177 - 4186