A Novel <i>C</i><sub>2</sub>-Symmetric 2,6-Diallylpiperidine Carboxylic Acid Methyl Ester as a Promising Chiral Building Block for Piperidine-Related Alkaloids
作者:Hiroki Takahata、Hidekazu Ouchi、Motohiro Ichinose、Hideo Nemoto
DOI:10.1021/ol0265620
日期:2002.10.1
1-carboxylic acid methyl ester (5) was examined via the double asymmetric allylboration of glutaraldehyde followed by aminocyclization and carbamation as a promising chiral building block for piperidine-related alkaloids, which were synthesized by the desymmetrization of 5 using intramolecular iodocarbamation as a key step. [reaction: see text]
C(2)对称的2,6-二烯丙基
哌啶1-
羧酸甲酯(5)通过
戊二醛的双不对称烯丙基
硼化,然后进行
氨基环化和
氨基甲酸酯化反应,作为
哌啶相关
生物碱的有前途的手性构建基,通过使用分子内
碘代
氨基甲酸酯化作为关键步骤的5脱对称化。[反应:看文字]