其他含量测定检测 | Synthesis and electro-polymerisation of a novel heteropentalene mesomeric betaine preparation of a novel low band-gap conjugated polymer by Biotage Initiator耐士科技-上海鑫欣生物科技有限公司

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应用领域	制药
检测样本	其他
检测项目	含量测定
参考标准	GB/T 8****

A biomimetic approach has been investigated and developed for the total synthesis of azonazine, an unusual marine natural cyclopeptide containing a rigid transannular 10-membered ring. A hypervalent iodine-mediated direct oxidative cyclization was successfully developed and applied to construct the highly strained core, which was the key step in the first total synthesis of ent-()-azonazine. Based on the physical evidences of synthesized diastereomer and enantiomer of azonazine, both the relative and absolute configurations of the natural product were revised. Two fluorinated azonazine derivatives were also synthesized in short convenient steps utilizing the same intermediate in this work. The established total synthesis opens a potential opportunity to study the structureeactivity relationship of natural azonazine.

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