Compounds of the following formulas which have anti-tumor and anti-viral activity and are especially useful in treating viral infections, their compositions and use.
A phosphonomethoxymethyoxymethyl purine/pyrimidine derivative of the formula
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, hydroyalkyl or R"CO-where R" is an alkyl and B is a purine or pyrimidine base.
A 4 -phosphonomethoxytetrahydrofuranyl-1 -purine-pyrimidine of the formula
wherein X and X are the same or different and are hydrogen or alkyl,
Y and Z are the same of different and are hydrogen hydroxyl or alkyl or Y + Z is an alkenyl, an epoxide or cyclopropyl, and
B is a purine or pyrimidine base.
具有抗肿瘤和抗病毒活性,尤其适用于治疗病毒感染的下列配方的化合物、其组成和用途。
式中的
磷酰甲氧基甲基
嘌呤/
嘧啶衍
生物
其中 X 和 X'相同或不同,且为氢或烷基。
R和R'相同或不同,且为氢、烷基、氢烷基或R "CO-其中R "为烷基,B为
嘌呤或
嘧啶碱。
式中的 4-膦酰甲氧基
四氢呋喃-1-
嘌呤嘧啶
其中 X 和 X 是相同或不同的,并且是氢或烷基、
Y 和 Z 相同或不同,且为氢羟基或烷基,或 Y + Z 为烯基、
环氧化物或环丙基,以及
B 是
嘌呤或
嘧啶碱。