Provided are compounds of the following formulae: A phosphonomethoxymethyoxymethyl purine/pyrimidine derivative of the formula ##STR1## wherein X and X' are the same or different and are hydrogen or alkyl. R and R' are the same or different and are hydrogen, alkyl, hydroxyalkyl or alkanoyl; B is a purine or pyrimidine base. optionally R is taken together with X' to complete a cyclic phosphonate having the formula ##STR2## A 4'-phosphonomethoxytetrahydrofuranyl-1'-purine-pyrimidine of the formula ##STR3## wherein X and X' are the same or different and are hydrogen or alkyl, the dashed line is an optional bond, Y and Z are the same or different and are hydrogen, hydroxyl or alkyl or Y+Z are taken together to form an epoxide or cyclopropyl, and B is a purine or pyrimidine base.
提供的化合物具有以下结构式:一种
磷酸甲氧甲氧甲基
嘌呤/
嘧啶衍
生物的结构式 ##STR1## 其中X和X'相同或不同,可以是氢或烷基。R和R'相同或不同,可以是氢、烷基、羟基烷基或酰基烷基;B是
嘌呤或
嘧啶碱基。可选地,R与X'结合形成具有结构式 ##STR2## 的环
磷酸酯。一种4'-
磷酸甲氧基
四氢呋喃基-1'-
嘌呤-
嘧啶的结构式 ##STR3## 其中X和X'相同或不同,可以是氢或烷基,虚线是可选的键,Y和Z相同或不同,可以是氢、羟基或烷基,或者Y+Z结合形成
环氧化物或环丙基,B是
嘌呤或
嘧啶碱基。