Syntheses of Puromycin from Adenosine and 7-Deazapuromycin from Tubercidin, and Biological Comparisons of the 7-Aza/Deaza Pair<sup>1</sup>
作者:Morris J. Robins、Robert W. Miles、Mirna C. Samano、Roger L. Kaspar
DOI:10.1021/jo010935d
日期:2001.11.1
treatment of the antibiotic tubercidin [7-deazaadenosine; 4-amino-7-(beta-D-ribofuranosyl)pyrrolo[2,3-d]pyrimidine] gave 3'-amino-3'-deoxytubercidin. Trifluoroacetylation of the 3'-amino function, elaboration of the heterocyclic amino group into a (1,2,4-triazol-4-yl) ring with N,N'-bis[(dimethylamino)methylene]hydrazine, and nucleophilic aromatic substitution with dimethylamine gave puromycin aminonucleoside
用叔丁基二苯基甲硅烷基氯保护2',3'-脱水腺苷(O5'),并用二甲基溴化硼进行环氧化物开环,得到3'-溴-3'-脱氧木糖异构体,将其用异氰酸苄酯处理,得到2'-O- (N-苄基氨基甲酰基)衍生物。闭环得到恶唑烷酮,并且随后的脱保护结束了通往3'-氨基-3'-脱氧腺苷的有效途径。抗生素结核菌素的类似治疗[7-脱氮杂苷; 4-氨基-7-(β-D-呋喃呋喃糖基)吡咯并[2,3-d]嘧啶]得到3′-氨基-3′-脱氧结核精。3'-氨基官能团的三氟乙酰化,用N,N'-双[(二甲基氨基)亚甲基]肼将杂环氨基加工成(1,2,4-三唑-4-基)环,并用二甲胺进行亲核芳族取代,得到嘌呤霉素氨基核苷[9-(3-氨基-3-脱氧-β-D-呋喃呋喃糖基)-6-(二甲基氨基)嘌呤]及其7-脱氮类似物。氨基酰化[BOC-(4-甲氧基-L-苯丙氨酸)]和脱保护得到嘌呤霉素和7-脱氮嘌呤霉素。大多数反应在环境温度或低于环境