Synthesis, cytotoxicity and anti-invasion activity of three natural diphyllin L-arabinopyranosides
作者:Rui Cai、Li Zhu、Weidong Shen、Yu Zhao
DOI:10.1016/j.fitote.2019.104198
日期:2019.9
The concise syntheses of three new natural diphyllin L-arabinopyranosides, Phyllanthusmin D (1), Phyllanthusmin B (4), Phyllanthusmin C (6) and a known analogue 7-O-[(2,3,4-tri-O-acetyl)-α-Larabinopyranosyl)] diphyllin (7) have been achieved employing phase transfer catalysis glycosylation and orthoester rearrangement. In biological assays, 4 showed the best cytotoxicity against human gastric carcinoma
三种新型天然二叶素 L-阿拉伯吡喃糖苷、叶黄素 D (1)、叶黄素 B (4)、叶黄素 C (6) 和已知类似物 7-O-[(2,3,4-tri-O-乙酰基) 的简明合成)-α-Larabinopyranosyl)] diphyllin (7) 已经通过相转移催化糖基化和原酸酯重排获得。在生物测定中,4对人胃癌MGC803细胞显示出最好的细胞毒性,IC50值为39 μg/mL。Transwell 侵袭试验表明,与对照相比,糖苷 1、4 和 7 显着抑制 MGC-803 细胞侵袭。