Synthesis of stable isotope-labeled nasturlexins and potential precursors to probe biosynthetic pathways of cruciferous phytoalexins
作者:M. Soledade C. Pedras、Q. Huy To
DOI:10.1002/jlcr.3591
日期:2018.2
The syntheses of perdeuterated phytoalexins nasturlexins A and C, and putative biosynthetic precursors, including phenylethyl isothiocyanates and phenylethyl dithiocarbamates, using commercially available [2,3,4,5,6-D5]phenylalanine, [2,3,4,5,6-D5]nitrobenzene, and [2,3,4,5,6-D5]benzaldehyde are described. In addition, application of an efficient deuterium-hydrogen exchange transformation to nonlabeled starting materials allowed access to new deuterated compounds, including 3-hydroxyphenylethyl glucosinolate.
利用市售的[2,3,4,5,6-D5]苯丙氨酸、[2,3,4,5,6-D5]硝基苯和[2,3,4,5,6-D5]苯甲醛,合成了全氘化的植保菌素nasturtexins A和C,以及包括苯乙基异硫氰酸酯和苯乙基二硫代氨基甲酸盐在内的假定生物合成前体。此外,应用高效的氘-氢交换转化非标记起始材料,使得获得包括3-羟基苯乙基葡萄糖苷酸在内的新氘化化合物成为可能。