Use of a compound of the formula ##STR1## wherein A is .beta.-2'-deoxy-D-ribofuranosyl or .beta.-D-arabinofuranosyl; R.sup.1 is hydroxy or amino; R.sup.2 is cycloalkyl or alkyl-substituted cycloalkyl containing 1-5 carbon atoms; saturated or unsaturated, straight or branched alkyl containing 1-5 carbon atoms which may be unsubstituted or substituted with halogen, hydroxy, mercapto, trifluoroalkyl or difluoroalkyl containing 1-3 carbon atoms, phenoxy or alkoxy containing 1-3 carbon atoms; phenyl or phenylalkyl containing 1-3 carbon atoms in the alkyl part, or a physiologically acceptable salt thereof, for manufacture of a medicament for therapeutic or prophylactic control or treatment of retrovirus, especially HIV, or hepatitis B virus infections in animal and man and to a method of such treatment.
使用公式##STR1##中的化合物,其中A是.beta.-2'-脱氧-
D-核糖呋喃苷或.beta.-D-阿拉伯
呋喃苷; R.sup.1是羟基或
氨基; R.sup.2是环状烷基或含有1-5个碳原子的烷基取代的环状烷基; 饱和或不饱和,直链或支链烷基,含有1-5个碳原子,可以是未取代或取代的卤素,羟基,巯基,三氟烷基或含有1-3个碳原子的二氟烷基,苯氧基或含有1-3个碳原子的烷氧基; 苯基或含有1-3个碳原子的苯基烷基部分,或其生理上可接受的盐,用于制造治疗或预防控制或治疗动物和人体内的逆转录病毒,特别是HIV或乙型肝炎病毒感染的药物,以及这种治疗方法。