Immunostimulating 7,8-disubstituted guanine derivatives that also contain a 9-alkyl, 9-alkoxy or 9-aralkyl substituent are disclosed whose structures are represented by Formula I ##STR1## wherein X is O or S; R.sup.1 is a hydrocarbyl or substituted hydrocarbyl group having a length of about one to about seven carbon atoms; R.sup.2 is a hydrocarbyl or hydroxyl- or ether-substituted hydrocarbyl group having a length of about four to about ten carbon atoms; and the pharmaceutically acceptable base addition salts thereof. Also disclosed are compositions containing an immunostimulating guanine derivative and processes for using the same.
本发明公开了一种免疫刺激的7,8-二取代
鸟嘌呤衍
生物,它们还含有一个9-烷基、9-烷氧基或9-芳基烷基取代基,其结构由式I表示:##STR1## 其中X为O或S;R1为烃基或取代烃基,其长度约为1到7个碳原子;R2为烃基或羟基或醚基取代的烃基,其长度约为4到10个碳原子;以及其药用可接受的盐酸盐。本发明还公开了含有免疫刺激
鸟嘌呤衍
生物的组合物和使用它们的方法。