作者:Keita Takeda、Ryo Katsuta、Arata Yajima、Ken Ishigami、Shigefumi Kuwahara、Tomoo Nukada
DOI:10.1080/14786419.2021.2023867
日期:——
and plant growth-promoting nonenolide, namely cremenolide, was revised by an efficient combination of DFT-based theoretical NMR calculations and synthesis of a target diastereomer. Initially, the planar structure of cremenolide was reconsidered by an individual analysis of the reported NMR spectra. Subsequently, the relative configuration was predicted using NMR calculations of all possible diastereomers
摘要 通过基于 DFT 的理论 NMR 计算和目标非对映异构体的合成的有效组合,修改了一种抗植物病原体和促进植物生长的壬烯内酯(即 cremenolide)的结构。最初,通过对报告的 NMR 光谱进行单独分析,重新考虑了克雷莫内尔的平面结构。随后,使用基于 ωB97X-D 泛函的所有可能非对映异构体的 NMR 计算预测了相对构型。最后,cremenolide 的相对构型通过所提出结构的制备得到明确证实。