resin, possessing a 2-(ortho-nitrophenyl)ethanal linker, was used for the regioselective on-resin synthesis of N-mono-hydroxylated and N-mono-methylated polyamine spider toxins of Agelenopsis aperta and Larinioides folium. The polyamine backbones of the target compounds were efficiently constructed from the center by reductive amination of the aldehyde linker, followed by stepwise alkylation and acylation
最近引入的具有2-(邻-
硝基苯基)
乙醛基连接基的新型
SPS
树脂被用于
树脂选择性合成Aperlenopsis aperta和Larinioides folium的N-单羟基化和N-单甲基化的
多胺蜘蛛毒素。通过醛连接基的还原胺化,然后在固体载体上逐步烷基化和酰化,从中心有效地构建了目标化合物的
多胺主链。取决于裂解条件,采用氧化/ Cope消除或甲基化/霍夫曼消除,区域选择性地各自的N-羟基或N获得了甲基产物。使用这种方法,合成了许多酰基
多胺蜘蛛毒素,并通过UHPLC和ESI-MS / MS将其鉴定为毒液成分。