反应条件
1: conc. HCl / dimethylformamide / Ambient temperature 2: 91 percent / imidazole / CH2Cl2 3: pyridine 4: DBU 5: 8 percent / NBS, 2,4-(trimethylsilyloxy)-6-methyl-pyrimidine, mol sieves 4A / CH2Cl2 / 0 °C 6: Dowex R 50W, H(1+) form / methanol View Scheme
参考文献
Tetrahedron Letters, , vol. 37, # 34 p. 6133 - 6136