绿柱虫二萜二醇A在手性位移试剂Eu(tfc)_3存在下的~1H—NMR研究

STUDY ON THE ~1H-NMR SPECTRUM OF CLAVUDIOL A IN THE EXISTENCE OF CHIRAL SHIFT REAGENT

本文研究了在手性位移试剂Eu(tfc)_3存在下,绿柱虫二萜二醇A(clavudiol A)(⊥)中各甲基的化学位移变化,并对19-甲基和20-甲基的~1H-NMR进行了归属。

The 1H-NMR spectrum of clavudiol A (1) has been studied in the existence of chiral reagent Eu (tfc)3 . In addition, the chemical shifts of 19 -methyl and 20-methyl of 1 was determined by 1H-NMR spectrum.