作者:Porte, Vincent、van Veen, Branca C.、Zhang, Haoqi、Piacentini, Paolo、Matheu, Sergio Armentia、Woolford, Sophie、Sokol, Kevin R.、Shaaban, Saad、Weinstabl, Harald、Maulide, Nuno
DOI:10.1021/acs.orglett.4c01269
日期:——
We describe the single-step formation of complex tetracyclic fused scaffolds enabled by (3 + 2) cycloaddition of azomethine ylides. Various indoles, N-protecting groups, and amino acids are well tolerated. The products are obtained in a catalyst-free manner with moderate to excellent yield and high diastereoselectivity. Representing a new scaffold that is not yet found in nature, the construction of
我们描述了通过偶氮甲碱叶立德的(3+2)环加成实现复杂四环稠合支架的一步形成。各种吲哚、N-保护基团和氨基酸均具有良好的耐受性。产物以无催化剂的方式获得,具有中等至优异的产率和高非对映选择性。吡咯烷稠合环庚基、氮杂环庚烷或氧杂吲哚的构建代表了自然界中尚未发现的新支架,在新的假天然产物的合成中具有重要价值。