A new ellagic acid derivative 3,3′-di-O-methylellagic acid 4′-α-l-arabinopyranoside (1), with 9 known compounds identified as 3,3′-di-O-methylellagic acid (2), 3,3′-di-O-methylellagic acid 4′-α-d-arabinofuranoside (3), 3,3′-di-O-methylellagic acid 4′-β-d-glucopyranoside (4), 3,3′-di-O-methylellagic acid 4′-β-d-xylopyranoglucoside (5), 3,3′,4-tri-O-methylellagic acid 4′-β-d-glucopyranoside (6), tormentic acid (7), ursolic acid (8), euscaphic acid (9), and betulinic acid (10), was isolated from the twigs of Euscaphis konishii Hayata. Compounds 1, 3, and 5 to 7 were isolated from this plant for the first time, and compounds 1 and 5 were obtained from the plant genus for the first time. The structure of the new compound was confirmed by HRESIMS, NMR, and compared with data from the literature . The cytotoxicities of 10 isolated compounds were tested, with compounds 1 to 6 showing moderately inhibited activity against the Human Hepatocarcinoma cell line (HepG2 cells) with an IC₅₀ value ranging from 69.7 to 181.8 μM.

一种新的鞣花酸衍生物的3,3'-二- ö -methylellagic酸4 ' - α-升-arabinopyranoside（1）中，用9种已知化合物鉴定为3,3'-二- Ö -methylellagic酸（2），3 ，3'-二ö -methylellagic酸4'-α- d -arabinofuranoside（3），3,3'-二- ö -methylellagic酸4' - β- d吡喃葡萄糖苷（4），3,3'-二ø -methylellagic酸4 ' - β- d -xylopyranoglucoside（5），3,3'，4-三ö -methylellagic酸4'-β-从小额叶草（Euscaphis konishii Hayata）的小枝中分离出d-吡喃葡萄糖苷（6），草酸（7），熊果酸（8），大黄酸（9）和桦木酸（10）。化合物1，3，及5至7，从该植物中首次分离得到，和化合物1和5从植物属首次得到。通过HRESIMS，NMR证实了新化合物的结构，并与文献数据进行了比较。测试了10种分离出的化合物的细胞毒性，其中化合物1图6至6显示出对人肝癌细胞系（HepG2细胞）的中等抑制活性，IC ₅₀值为69.7至181.8μM。