4,4′-Bismoschamine: biomimetic synthesis and evidence to support structural equivalency to montamine
作者:Kaitlin G. Henry、Lachlan M. Blair、Jonathan Sperry、Elizabeth A. Colby Davie
DOI:10.1039/c6ob01685e
日期:——
that claims montamine and 4,4′-bismoschamine are not the same natural product prompts us to disclose our own findings on this matter. A biomimetic synthesis of 4,4′-bismoschamine was developed that hinged on oxidative coupling of N-Boc-serotonin followed by elaboration of the resulting 4,4′-dimer to the natural product. A detailed comparison of the NMR data for synthetic 4,4′-bismoschamine with that
二聚体天然产物montamine最初报道为两个N-feruloylserotonin(moschamine)单元通过氮-氮键连接,但是我们最近合成的这种对称的二酰基酰肼结构表明这是不正确的。我们随后假设,moschamine亚基通过吲哚C4位点连接,而montamine在结构上与红花油中已知的天然产物4,4'-bismoschamine相同。但是,由于无法获得真实的蒙特胺和4,4'-双烟酰胺样品,而且天然产物的NMR数据记录在不同的溶剂中,因此我们无法明确地证明这一假设。最近发表的一份声明声称山amine胺和4,4'-比莫沙明不是同一天然产物,这促使我们披露自己在此问题上的发现。4的仿生合成N -Boc-5-羟色胺,然后将所得的4,4'-二聚体精制为天然产物。对合成的4,4'-双氨基schamine的NMR数据与报告的山mont胺进行的详细比较表明,尽管1 H NMR数据吻合良好,但13 C