Application of Intramolecular 1,3-Dipolar Cyclic Addition of Azide and Olefin; Construction of (Pyrrolidine-2-ylidene)glycinate and Glycinamides
作者:Yaeko Konda-Yamada、Keiko Asano、Takahiro Satou、Souichi Monma、Masataka Sakayanagi、Noriko Satou、Kazuyoshi Takeda、Yoshihiro Harigaya
DOI:10.1248/cpb.53.529
日期:——
5-tri-O-benzyl-4-O-tert-butyldimethylsilyl(TBDMS)-D-arabinal (7) using intramolecular 1,3-dipolar cyclic reaction of azide and olefin as a key reaction. These results proved this cyclic reaction should be applicable for the synthesis of various (pyrrolidine-2-ylidene)glycinate and glycinamide. In addition, the development of a synthetic route for the precursor of an unsaturated cyclic dehydro amino acid involved
由2,3,5-三-O-苄基-4-O-叔胺有效合成了氧丙基E-(吡咯烷-2-亚基)甘氨酰胺(5c)和烯丙基E-(吡咯烷-2-亚基)甘氨酸酯(5d) -丁基二甲基甲硅烷基(TBDMS)-D-阿拉伯醛(7),其中叠氮化物和烯烃的分子内1,3-偶极环化反应为关键反应。这些结果证明该循环反应应适用于各种(吡咯烷-2-亚基)甘氨酸盐和甘氨酰胺的合成。此外,描述了使用相关的甘氨酸盐,E-(吡咯烷-2-亚基)甘氨酸甲酯(5a)开发涉及阿奇霉素(卡其菌素)的不饱和环状脱氢氨基酸前体的合成途径。