Enantioselective Synthesis of the Unnatural Enantiomers of the Fungal Sesquiterpenoids Acorenone and Trichoacorenol
作者:Nelson L. Brock、Jeroen S. Dickschat
DOI:10.1002/ejoc.201100688
日期:2011.9
spirocyclic sesquiterpenoids trichoacorenol, previously identified in Trichoderma koningii (Huang et al., 1995), and acorenone. A new enantioselective synthesis of the enantiomer of the natural spirocyclic sesquiterpene acorenone and the first enantioselective synthesis of the related compound ent-trichoacorenol have been completed by a chiral-pool approach starting from (+)-(R)-pulegone using ring-closing metathesis
使用闭环汽提装置收集几种木霉属真菌释放的挥发物,并通过 GC-MS 进行分析。大多数研究的菌株都释放了两种结构相关的螺环倍半萜类物质 trichoacorenol,以前在 Trichoderma koningii (Huang et al., 1995) 和 acorenone 中发现。天然螺环倍半萜烯酮对映体的新对映选择性合成和相关化合物ent-trichoacorenol的首次对映选择性合成已通过从(+)-(R)-pulegone开始使用闭环复分解的手性池方法完成作为关键步骤。来自哈茨木霉属的天然滴虫醇的绝对构型。714已通过手性GC-MS分析指定,与T. koningii中的相同。