A convergent synthesis of the fully functionalised tris-oxazole system 16, found in the ulapualide family of marine macrolides, involving elaboration of the substituted oxazoles 13 and 8, followed by their coupling to the amide 14 and manipulation of the third oxazole ring via the oxazoline intermediate 15, is described.
全功能化三
恶唑系统 16(在海洋大环
内酯类乌拉普利特家族中发现)的收敛合成,涉及取代
恶唑 13 和 8 的精制,然后将它们与酰胺 14 偶联,并通过
恶唑啉操纵第三个
恶唑环描述了中间体15。