Metal-Templated Macrolactamization of Triamino and Tetramino Esters. Facile Synthesis of Macrocyclic Spermidine and Spermine Alkaloids, (<i>S</i>)-(+)-Dihydroperiphylline, (±)-Buchnerine, (±)-Verbacine, (±)-Verbaskine, and (±)-Verbascenine
作者:Yoshichika Kuroki、Kazuaki Ishihara、Naoyuki Hanaki、Suguru Ohara、Hisashi Yamamoto
DOI:10.1246/bcsj.71.1221
日期:1998.5
The total synthesis of spermidine and spermine alkaloids, (S)-(+)-dihydroperiphylline (1), (±)-buchnerine (2), (±)-verbacine (3), (±)-verbaskine (4), and (±)-verbascenine (5), is described. The construction of macrocyclic lactams has been efficiently accomplished by the metal-templated cyclization of triamino esters and tetraamino esters. It was also found that the antimony(III) ethoxide is useful
亚精胺和精胺生物碱、(S)-(+)-dihydroperiphylline (1)、(±)-buchnerine (2)、(±)-verbacine (3)、(±)-verbaskine (4) 和(±)-verbascenine (5),描述。大环内酰胺的构建已通过三氨基酯和四氨基酯的金属模板环化有效完成。还发现乙氧基锑(III)可用作分子间酰胺化催化剂。