Construction of the A-ring of cylindrospermopsin via an intramolecular oxazinone-N-oxide dipolar cycloaddition
作者:Ryan E Looper、Robert M Williams
DOI:10.1016/s0040-4039(00)01921-3
日期:2001.1
The efficient synthesis of an A-ring synthon for the marine hepatatoxin cylindrospermopsin has been achieved. The key step features an intramolecular oxazinone N-oxide/alkene dipolar cycloaddition resulting in the establishment of the three contiguous stereogenic centers in the A-ring from one pre-existing stereogenic center in a single step.
已经实现了用于海洋肝毒素cylindrospermopsin的A环合成子的有效合成。关键步骤的特征是分子内恶嗪酮N-氧化物/烯烃双极性环加成反应,可在一个步骤中从一个预先存在的立体生成中心在A环中建立三个连续的立体生成中心。