Dihydroisocoumarins and Dihydroisoflavones from the Rhizomes of Dioscorea collettii with Cytotoxic Activity and Structural Revision of 2,2′-Oxybis(1,4-di-tert-butylbenzene)
作者:Songsong Jing、Zhuo Qu、Chengcheng Zhao、Xia Li、Long Guo、Zhao Liu、Yuguang Zheng、Wenyuan Gao
DOI:10.3390/molecules26175381
日期:——
compound 2 was revised on the basis of a reinterpretation of its NMR data (1D and 2D) and the assignment of the 1H and 13C NMR data was given rightly for the first time. Compounds 3a–4, three dihydroisoflavones, were reported from the Dioscoreaceae family for the first time. The cytotoxic activities of all the compounds were tested against the NCI-H460 cell line. Two dihydroisocoumarins, compounds 1a and
对薯蓣根茎成分的研究提供了一种新的二氢异香豆素,命名为 (-)-montroumarin ( 1a ),以及五种已知化合物——montroumarin ( 1b )、1,1'-oxybis(2,4-di-叔丁基苯)(2),(3 - [R)-3'--O-methylviolanone(3A),(3小号)-3'- Ô -methylviolanone(图3b),和(RS)-sativanone(4)。使用广泛的光谱方法阐明了它们的结构。据我们所知,化合物1a是化合物1b的新对映异构体。化合物的NMR数据2已被报道,但其结构是错误的。化合物2的结构在对其NMR数据(1D和2D)的重新解释的基础上进行了修改,并首次正确给出了1 H和13 C NMR数据的归属。化合物3a - 4,三种二氢异黄酮,是首次从薯蓣科中报道。针对 NCI-H460 细胞系测试了所有化合物的细胞毒活性。两种二氢异香豆素,化合