Neolignans from Myristica fragrans seeds, revision of their absolute configurations, reduction products and biological activities
作者:Sudarat Kruakaew、Suriphon Singha、Ek Sangvichien、Jantana Yahuafai、Somyote Sutthivaiyakit
DOI:10.1016/j.phytochem.2022.113174
日期:2022.7
tetrahydrogenated products, the absolute configuration of these compounds was thoroughly investigated based on their optical rotations and ECD spectra. This report provides evidences concerning the disagreement between the use of an aromatic quadrant rule and time-dependent density function theory calculation for the prediction of the absolute configurations at C-7 and C-8 in these dihydrobenzofuran
肉豆蔻CH 2 Cl 2提取物的色谱纯化种子提供了 19 种已知化合物,其中分离出 4 种二氢呋喃新木脂素,即 licarines A、B 和 maceneolignan A、B。在氢化之前,为了获得它们的二氢化和四氢化产物,这些化合物的绝对构型基于它们的旋光度和 ECD 光谱进行了彻底的研究。该报告提供了关于使用芳香象限规则和时间相关的密度函数理论计算来预测这些二氢苯并呋喃新木脂素中 C-7 和 C-8 的绝对构型之间存在分歧的证据。随后重新定义了 licarines A、B 和 maceneolignans A、B 的绝对构型。还研究了 licarines A、B 和 maceneoligans A、B 的分离物和还原产物的抗菌和细胞毒活性。