Synthesis of 1-[2-(Hydroxymethyl)cyclohexyl]pyrimidine Analogues of Nucleosides: A Comparative Study
作者:Dolores Viña、Lourdes Santana、Eugenio Uriarte、Elías Quezada、Laura Valencia
DOI:10.1055/s-2004-831224
日期:——
carbo-nucleosides analogues of pyrimidine (cyclohexane derivatives) is reported. For the synthesis of the uridine analogue 5a, either construction of the base on the amino group of the amino alcohol 3 or on the amido group of the predecessor β-lactam 1 was more efficient than condensation of the base with a protected diol. The cisconfiguration of 5a was confirmed by X-ray crystallography. Compound 5a was halogenated
报道了一系列新的嘧啶(环己烷衍生物)的 1,2-二取代碳核苷类似物的合成。对于尿苷类似物 5a 的合成,在氨基醇 3 的氨基上或在前身 β-内酰胺 1 的酰胺基上构建碱基比碱基与受保护的二醇缩合更有效。5a 的顺式构型通过 X 射线晶体学证实。化合物 5a 在尿嘧啶 5 位被 Cl、Br 和 I 卤化。