Sulfinosine congeners: synthesis and antitumor activity in mice of certain N9-alkylpurines and purine ribonucleosides
作者:Naeem B. Hanna、Birendra K. Bhattacharya、Roland K. Robins、Thomas L. Avery、Ganapathi R. Revankar
DOI:10.1021/jm00027a022
日期:1994.1
A number of N9-alkyl-substituted purines and purine ribonucleosides have been synthesized as congeners of sulfinosine and evaluated for their antileukemic activity in mice. NaH-mediated alkylation of 6-chloropurine (4) and 2-amino-6-chloropurine (5) with certain alkyl bromides gave N7- and N9-alkylated derivatives (7a-d and 6a-d), the N9-isomer being the major product. Treatment of 6a-d and 7a-d with
已经合成了许多N9-烷基取代的嘌呤和嘌呤核糖核苷,它们是亚砜的同类物,并评估了它们在小鼠中的抗白血病活性。NaH介导的6-氯嘌呤(4)和2-氨基-6-氯嘌呤(5)与某些烷基溴的烷基化反应生成N7-和N9-烷基化的衍生物(7a-d和6a-d),其中N9-异构体为主要产品。用硫脲处理6a-d和7a-d提供了相应的6-硫代衍生物(9a-d和8a-d)。用氯胺水溶液胺化9a-e得到相应的嘌呤-6-亚磺酰胺(10-ae),将其经3-氯过氧苯甲酸(MCPBA)控制氧化后,分别得到(R,S)-9-烷基嘌呤-6-亚磺酰胺(11a-e)。2-氨基-6-(甲基/苄硫基)-9-β-D-呋喃呋喃糖基嘌呤(12a和12b)和2-氨基-9-(2-脱氧-β-D-赤型戊呋喃糖基)-6的相似氧化用MCPBA将-(甲硫基)-嘌呤(12c)得到相应的亚砜(13a-c),将其进一步氧化得到相应的砜(14a-c)。在所评估的20种