A series of 2-X-substituted-6-phenyl-9-(β-D-ribofuranosyl)purines (X = Cl, Br, I, CH3, CF3and Ph) was prepared by halo-deaminations of protected 2-amino-6-phenylpurine ribonucleoside, by regioselective Suzuki-Miyaura reactions of 2,6-dihalopurines with phenylboronic acid or by cross-coupling reactions of the corresponding 2-halo-6-phenylpurines followed by deprotection. None of the title nucleosides exhibited any considerable cytostatic activity.
一系列2-X-取代-6-
苯基-9-(β-
D-核糖呋喃)
嘌呤化合物(X = Cl, Br, I, CH
3, CF
3和Ph) 通过保护的2-
氨基-6-
苯基
嘌呤核苷酸的卤代
脱氨化反应、
2,6-二卤代
嘌呤与
苯基
硼酸的区域选择性Suzuki-Miyaura反应或相应的2-卤代-6-
苯基
嘌呤的交叉偶联反应后
脱保护而制备。所有的
核苷酸都没有表现出任何明显的细胞毒素活性。