Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, USA.
Org Lett. 2011 Jan 21;13(2):248-51. doi: 10.1021/ol1026816. Epub 2010 Dec 16.
Conjugate reduction of an enone accompanied by in situ intramolecular aldol condensation was used to construct the tetrasubstituted cyclohexane nucleus of phomactins. Subsequent relay ring-closing metathesis completed the nine-membered ansa bridge of the diterpenoid framework.
烯酮的共轭还原伴随着原位分子内羟醛缩合反应,用于构建菲马菌素的四取代环己烷核。随后的接力环化交叉复分解反应完成了二萜骨架的九元ansa 桥。