来自卷心菜叶的酰化黄酮醇糖苷。

Acylated flavonol glycosides from cabbage leaves.

作者信息

Nielsen J K, Olsen C E, Petersen M K

机构信息

Chemistry Department, Royal Veterinary and Agricultural University, Frederiksberg, Denmark.

出版信息

Phytochemistry. 1993 Sep;34(2):539-44. doi: 10.1016/0031-9422(93)80042-q.

DOI:10.1016/0031-9422(93)80042-q

PMID:7764144

Abstract

Seven flavonol glycosides were isolated from a leaf extract of cabbage and characterized by chemical and spectroscopic methods including 1H and 13C NMR and negative ion FAB-MS. Five compounds were new natural products or were fully characterized for the first time. They are derivatives of kaempferol-3-O-beta-D-sophoroside-7-O-beta-D-glucoside acylated at C-2"' with either caffeic acid, p-coumaric acid or ferulic acid, and of quercetin-3-O-beta-D-sophoroside-7-O-beta-D-glucoside acylated with either caffeic acid or ferulic acid. Kaempferol-3-O-beta-D- sophoroside-7-O-beta-D-glucoside and kaempferol-3-O-beta-D-(2-sinapoylsophoroside)-7-O-beta-D-glucoside were found for the first time in cabbage, but they have previously been found in other Brassica species.

摘要

从卷心菜叶提取物中分离出七种黄酮醇苷，并通过化学和光谱方法进行表征，包括1H和13C NMR以及负离子FAB-MS。其中五种化合物是新的天然产物或首次得到全面表征。它们是山奈酚-3-O-β-D-槐糖苷-7-O-β-D-葡萄糖苷在C-2'''位被咖啡酸、对香豆酸或阿魏酸酰化的衍生物，以及槲皮素-3-O-β-D-槐糖苷-7-O-β-D-葡萄糖苷被咖啡酸或阿魏酸酰化的衍生物。山奈酚-3-O-β-D-槐糖苷-7-O-β-D-葡萄糖苷和山奈酚-3-O-β-D-(2-芥子酰槐糖苷)-7-O-β-D-葡萄糖苷首次在卷心菜中被发现，但此前已在其他十字花科植物中发现过。