New Isolinariins C, D and E, Flavonoid Glycosides from <i>Linaria japonica</i>
作者:Retno Widyowati、Sachiko Sugimoto、Yoshi Yamano、Sukardiman、Hideaki Otsuka、Katsuyoshi Matsunami
DOI:10.1248/cpb.c16-00073
日期:——
Three new flavonoid glycosides named isolinariins C, D and E (1-3), two known flavonoid glycosides (4, 5) and three known flavonoids (6-8) were isolated from the whole plant of Linaria japonica. The structures of these compounds were determined mainly by spectroscopic analyses. The bioactivities of these isolated compounds were evaluated for their inhibitory activities against human cell line A549
从日本亚麻(Linaria japonica)的整个植物中分离出了三个新的类黄酮苷,分别为异萘菌素C,D和E(1-3),两个已知的类黄酮苷(4、5)和三个已知的类黄酮(6-8)。这些化合物的结构主要通过光谱分析确定。对这些分离的化合物的生物活性进行了评估,以评估其对人类细胞系A549的抑制活性,胶原酶和高级糖基化终产物(AGE)的形成。在分离出的化合物中,异丝氨酸C,D和E(1、2和3)显示出对AGE形成的抑制作用(IC50值分别为34.8、35.0和19.5 µM)。发现亚麻酸(4),果胶(5)和木犀草素(8)对胶原酶有活性,IC50值分别为79.4、78.6和40.5 µM,在这些浓度下没有明显的细胞毒性。