xylofuranosyladenine and xylofuranosyl-8-azaadenine were prepared. In contrast to 9-beta-D-xylofuranosyladenine and its 8-aza analogue, the corresponding carbocyclic nucleosides were resistant to deamination by adenosine deaminase. The carbocyclic 8-aza derivative 10 exhibited significant in vivo antitumor activity which varied according to treatment schedule.
(+/-)-4 alpha-Amino-2 alpha,3 beta-dihydroxy-1 alpha-cyclopentanemethanol(6)是木
呋喃糖胺的碳环类似物,是由先前报道的4 alpha-acetamido-2 alpha,3 alpha-合成的环氧
环戊烷-1α-
甲醇。通过与5缩合将胺6转化为(+/-)-4α-[(5-
氨基-6-
氯-4-
嘧啶基)
氨基] -2α,3β-二羟基-1α-
环戊烷甲醇(7) -
氨基-4,6-二
氯嘧啶。从7,制备了木
呋喃糖基
腺嘌呤和木
呋喃糖基-
8-氮杂腺嘌呤的碳环类似物。与9-β-D-木
呋喃糖基
腺嘌呤及其8-氮杂类似物相反,相应的碳环核苷对
腺苷脱氨酶具有抗脱
氨性。碳环8-氮杂衍
生物10显示出显着的体内抗肿瘤活性,其根据治疗方案而变化。