to canthin-5,6-dione compounds. The absolute configuration of natural picrasidine Y was elucidated based on comparisons of chemically synthesized isoforms with the naturally occurring compound in 1H and 13C NMR spectra, specific optical rotation, HPLC analysis with chiral columns, computational molecular simulation, and analysis with the CD exciton chirality method.
尚未确定从拟南芥(Simaroubaceae)分离出的β-咔啉
生物碱吡喃ras啶Y的绝对构型。为了确定
吡喃
吡啶Y的绝对构型,我们使用
酒石酸作为起始原料通过7步
化学反应合成了
吡喃
吡啶Y的立体异构体。此外,我们将这种合成方法的应用范围扩展到了canthin-5,6-dione化合物。基于
化学合成的同工型与天然存在的化合物在1 H和13 C NMR光谱中的比较,比旋光度,手性色谱柱HPLC分析,计算分子模拟和CD激子分析,阐明了天然苦味苷Y的绝对构型手性法。