An enantiospecific synthesis of (+)-methyl epijasmonate and (−)-methyl cucurbate from L-glutamic acid
作者:Tarun K. Sarkar、Bireswar Mukherjee、Sunil K. Ghosh
DOI:10.1016/s0040-4020(98)00069-6
日期:1998.3
An enantiospecific route to jasmonoid natural products, (+) - methyl epijasmonate and (−)-methyl cucurbate from L-glutamic acid is reported. The key step is a 5-(3,4) ene cyclization of a functionalized 1,6-diene as chiron, which sets up three chiral centres with a high degree of diastereoselectivity.
据报道,从L-谷氨酸到茉莉花天然产物,(+)-茉莉酸甲酯和(-)-甲基葫芦巴酸有一种对映体特异性途径。关键步骤是功能化的1,6-二烯(如Chiron)的5-(3,4)烯环化,它建立了具有高度非对映选择性的三个手性中心。