已经建立了第二代(-)-抗弹性蛋白A的方法。本策略的特征在于2-环戊烯氧基羰基叠氮化物的FeBr 2介导的自由基环化反应,该反应可立体选择性地安装适用于生产agelastatin A BCD环系统的顺式-邻位氨基溴官能团。氨基溴化方法可简化对恶唑烷酮的使用以前报道的合成中的关键中间体,从而最终完成了新的(-)-agelastatin A的新合成。
reported. The requisite nitrogen functionalities of the agelastatin core have been installed by intramolecular aziridination of an azidoformate and subsequent regioselective azidation, leading to net trans-diamination of the double bond. The present synthesis also demonstrates two new protocols for the preparation of an imidazolidinone hemiaminal motif from an oxazolidinone intermediate which comprise sequential
The second-generation approach to (−)-agelastatin A has been established. The present strategy features the FeBr2-mediated radicalcyclization of 2-cyclopentenyloxycarbonyl azide that allows for the stereoselective installation of a cis-vicinal aminobromo functionality suitable for producing the BCD-ring system of agelastatin A. The aminobromination method streamlines access to oxazolidinone, a key
已经建立了第二代(-)-抗弹性蛋白A的方法。本策略的特征在于2-环戊烯氧基羰基叠氮化物的FeBr 2介导的自由基环化反应,该反应可立体选择性地安装适用于生产agelastatin A BCD环系统的顺式-邻位氨基溴官能团。氨基溴化方法可简化对恶唑烷酮的使用以前报道的合成中的关键中间体,从而最终完成了新的(-)-agelastatin A的新合成。