School of Pharmacy, Tokyo University of Pharmacy and Life Sciences.
Chem Pharm Bull (Tokyo). 2022;70(2):175-181. doi: 10.1248/cpb.c21-00907.
Two novel triterpene glycosides (1 and 2), 17 known triterpene glycosides (3-19), two known flavonoid glycosides (20 and 21), and two known norsesquiterpene glucosides (22 and 23) were isolated from Hedera rhombea (Araliaceae) leaves. The structures of 1 and 2 were determined by spectroscopic analysis, including two-dimensional NMR spectroscopy, and chromatographic analysis of the hydrolyzed products. The cytotoxicity of the isolated triterpene glycosides (1-19) against HL-60 human promyelocytic leukemia cells was evaluated. Compounds 9, 10, and 11 were cytotoxic to HL-60 cells with IC values of 7.2, 21.9, and 32.8 µM, respectively. Other compounds isolated from the leaves were not cytotoxic at sample concentrations of 50 μM.
从常春藤(五加科)叶子中分离得到两种新的三萜糖苷(1 和 2)、17 种已知的三萜糖苷(3-19)、两种已知的黄酮苷(20 和 21)和两种已知的倍半萜葡萄糖苷(22 和 23)。通过包括二维 NMR 光谱在内的光谱分析以及水解产物的色谱分析确定了 1 和 2 的结构。评估了分离出的三萜糖苷(1-19)对 HL-60 人早幼粒细胞白血病细胞的细胞毒性。化合物 9、10 和 11 对 HL-60 细胞具有细胞毒性,IC 值分别为 7.2、21.9 和 32.8 μM。在 50 μM 的样品浓度下,从叶子中分离出的其他化合物没有细胞毒性。