New 8-substituted nucleoside and purine derivatives of the general formula:
wherein R represents an amino or an hydroxy group possibly in the corresponding keto tautomeric form, R1 is hydrogen or an amino group, R2 is hydrogen or a β-D-ribofuranosyl radical wherein the primary hydroxy group and/or the two secondary hydroxy groups may be derivatized, R3 is an optionally substituted aryl or monocyclic heteroaryl radical and, X is-O-or-S-.
The new compounds have antihyperlipaemic activity.
通式如下的新的 8-取代核苷和
嘌呤衍
生物:其中 R 代表
氨基或羟基,可能以相应的
酮同分异构形式存在;R1 是
氢或
氨基;R2 是
氢或β-D-
呋喃核糖基,其中主羟基和/或两个仲羟基可以衍生化;R3 是任选取代的芳基或单环杂芳基;X 是-O-或-S-。