Synthesis of Conformationally Locked <scp>l</scp>-Deoxythreosyl Phosphonate Nucleosides Built on a Bicyclo[3.1.0]hexane Template
作者:Hisao Saneyoshi、Jeffrey R. Deschamps、Victor E. Marquez
DOI:10.1021/jo101475p
日期:2010.11.19
l-deoxythreosyl phosphonate nucleosides (2 and 3) were synthesized to investigate the preference of HIV reverse transcriptase for a conformation displaying either a fully diaxial or fully diequatorial disposition of substituents. Synthesis of the enantiomeric 4-(6-amino-9H-purin-9-yl)bicyclo[3.1.0]hexan-2-ol carbocyclic nucleoside precursors (diaxially disposed) proceeded straightforwardly from commercially available
合成了两个构象锁定形式的l-脱氧苏糖基膦酸酯核苷(2和3),以研究 HIV 逆转录酶对显示取代基完全双轴或完全双赤道配置的构象的偏好。对映体 4-(6-amino-9 H -purin-9-yl)bicyclo[3.1.0]hexan-2-ol 碳环核苷前体(双轴布置)的合成直接从市售 (1 R ,4 S ) 进行-4-羟基-2-环戊-2-烯基-1-基乙酸酯采用羟基导向的西蒙斯-史密斯环丙烷化反应,最终以嘌呤碱的光信偶合结束。对于更复杂的 1-(6-amino-9 H-purin-9-yl)bicyclo[3.1.0]hexan-3-ol 碳环核苷前体(diquatorially 放置),必须的线性方法需要合成关键的 1-aminobicyclo[3.1.0.]hexan-3-yl benzoate通过 Kulinkovich 反应的酰胺变体组装的前体,包括取代的 δ-乙烯基酰胺的分子内环