New phenolic compounds were isolated by chromatographic separation of MeOH extracts from leaves of two Gentiana species growing in eastern Siberia. Their structures were elucidated by UV and NMR spectroscopy and mass spectrometry. The new xanthone isomangiferin-7-O-β-D-glucopyranoside (neoisomangiferin) was isolated from G. dahurica Fisch.. A new C,O-glycosylflavone, apigenin-6-C-[2″-O-(6″″-O-caffeyl)-β-D-glucopyranosyl]-β-D-glucopyranoside-4′-O-β-D-glucopyranoside (gentiflavone A) was observed in G. macrophylla Pall.

中文翻译：

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来自西伯利亚龙胆属的新化合物。二、氧杂蒽酮和 C,O-糖基黄酮

通过对生长在西伯利亚东部的两种龙胆属植物叶子中的甲醇提取物进行色谱分离，分离出新的酚类化合物。它们的结构通过紫外和核磁共振光谱和质谱进行了阐明。从G. dahurica Fisch.中分离得到新的呫吨酮异芒果苷-7-O- β -D-吡喃葡萄糖苷（neoisomangiferin）。一种新的C，O-糖基黄酮，芹菜素-6-C-[2″-O-(6″″) -O-caffeyl） - β -D-吡喃葡萄糖] - β -D-吡喃葡萄糖苷-4'--O- β -D-吡喃葡糖苷（gentiflavone A）中观察到艽帕尔。