Straightforward Synthesis of Diverse 1-Deoxyazapyranosides via Stereocontrolled Nucleophilic Additions to Six-Membered Cyclic Nitrones
作者:Ting-Hao Chan、Yi-Fan Chang、Jung-Jung Hsu、Wei-Chieh Cheng
DOI:10.1002/ejoc.201001045
日期:2010.10
A systematic study of diastereoselective nucleophilic addition of Grignard reagents to six-membered chiral tri-O-benzyl cyclic nitrones is described. With all eight chiral cyclic nitrones and asymmetric reaction conditions in hand, a practical methodology is established for the preparation of diverse 1-deoxyazapyranosides bearing various stereogenic centers.
描述了格氏试剂对六元手性三-O-苄基环硝酮的非对映选择性亲核加成的系统研究。掌握了所有八种手性环状硝酮和不对称反应条件,建立了一种实用的方法来制备带有各种立体中心的各种 1-脱氧氮杂吡喃糖苷。