Synthesis of Novel Apio Carbocyclic Nucleoside Analogues as Selective A<sub>3</sub> Adenosine Receptor Agonists
作者:Jeong A Lee、Hyung Ryong Moon、Hea Ok Kim、Kyung Ran Kim、Kang Man Lee、Bum Tae Kim、Ki Jun Hwang、Moon Woo Chun、Kenneth A. Jacobson、Lak Shin Jeong
DOI:10.1021/jo0503207
日期:2005.6.1
the properties of two nucleosides, were stereoselectively synthesized. The apio moiety of the target nucleosides 5a−d was stereoselectively introduced by treating lactol 10 with 37% formaldehyde in the presence of potassium carbonate. The carbasugar moiety of neplanocin A was successively built by exposing diene 12 on a Grubbs catalyst in methylene chloride. The final nucleosides 5a−d were synthesized
基于内啡肽A和apio-dideoxyadenosine(apio-ddA)的生物学活性,立体选择性地合成了新的apio-neplanocin A类似物5a - d,结合了两个核苷的特性。通过在碳酸钾存在下用37%甲醛处理乳糖醇10,立体选择性地引入靶核苷5a - d的apio部分。通过将二烯12暴露在二氯甲烷中的Grubbs催化剂上来连续构建neplanocin A的羧化糖部分。最终核苷5a - d由糖基供体14的缩合合成在标准的Mitsunobu条件下使用核酸碱基。同样,apio-aristeromycin 6和(N)-apio-methanocarbaadenosine 7是使用催化氢化和Simmons-Smith环丙烷化为关键步骤从共同的中间体13衍生而来的。所有最终的核苷5a - d,6和7均未显示出对高达100μM的S-腺苷同型半胱氨酸水解酶(SAH)的显着抑制活性,这可能是由