Novel hydrogenated pyrimidine nucleosides and nucleotides are produced by catalytic hydrogenation, particularly in the presence of a rhodium catalyst. The novel compounds are specifically used to inhibit deaminating enzymes, which would inactivate cytosine arabinoside by conversion to uridine arabinoside. Cytosine arabinoside is used for its anti-viral, particularly anti-herpes and anticytotoxic activity in mammals and birds, as well as to destroy phages which interfere with the production of antibiotics. Novel formulations containing cytosine arabinoside and the hydrogenated pyrimidine nucleosides are advantageous to provide prolonged cytosine arabinoside effects.
新型氢化
嘧啶核苷和核苷酸是通过催化氢化制备的,特别是在
铑催化剂的存在下。这些新型化合物专门用于抑制脱
氨酶,该酶会将
胞嘧啶阿拉伯核苷转化为尿
嘧啶阿拉伯核苷,从而使得
胞嘧啶阿拉伯核苷失活。
胞嘧啶阿拉伯核苷用于其抗病毒作用,尤其是对抗疱疹病毒和抗细胞毒作用,在哺乳动物和鸟类中也用于消灭干扰抗生素生产的噬菌体。含有
胞嘧啶阿拉伯核苷和氢化
嘧啶核苷的新型配方有利于提供持久的
胞嘧啶阿拉伯核苷效果。