Malonylated flavonol glycosides from the petals of Clitoria ternatea
Malonylated flavonol glycosides from the petals of Clitoria ternatea
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DOI：
10.1016/s0031-9422(02)00486-7
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发表时间：
2003-01-01
期刊：
影响因子：
3.8
通讯作者：
Suzuki, M
中科院分区：
文献类型：
--
作者：
Kazuma, K;Noda, N;Suzuki, M
从山奈酚3-O-（2”- o -鼠李糖基-6”- o -丙二醇基）- β -葡萄糖苷、槲皮素3-O-（2”- o -鼠李糖基-6”- o -丙二醇基）- β -葡萄糖苷和杨梅素3-O-（2”，6”-二- o -鼠李糖基）- β -葡萄糖苷3种黄酮醇苷。双蓝，以及11种已知的黄酮醇苷。用紫外、质谱和核磁共振光谱鉴定了它们的结构。它们在同一组织中被鉴定为山奈酚和槲皮素3-（2(G)-鼠李糖水杨素苷）s，山奈酚、槲皮素和杨梅素3-新橙皮苷，3-芦丁苷和3-葡萄糖苷。此外，从粗花瓣提取物的LC/MS/MS数据中推断出杨梅素3-O-（2′- o - α -鼠李糖-6′- o -丙二醇）- β -葡萄糖苷的存在。黄花参花瓣中黄酮醇类化合物的鉴定结果与文献报道不同。2003爱思唯尔科学有限公司版权所有。
Three flavonol glycosides, kaempferol 3-O-(2"-O-alpha-rhamnosyl-6"-O-malonyl)-beta-glucoside, quercetin 3-O-(2"-O-alpha-rhamnosyl-6"-O-malonyl)-beta-glucoside, and myricetin 3-O-(2",6"-di-O-alpha-rhamnosyl)-beta-glucoside were isolated from the petals of Clitoria ternatea cv. Double Blue, together with eleven known flavonol glycosides. Their structures were identified using UV, MS, and NMR spectroscopy. They were characterized as kaempferol and quercetin 3-(2(G)- rhamnosylrutinoside)s, kaempferol, quercetin, and myricetin 3-neohesperidosides, 3-rutinosides, and 3-glucosides in the same tissue. In addition, the presence of myricetin 3-O-(2"-O-alpha-rhamnosyl-6"-O-malonyl)-beta-glucoside was inferred from LC/MS/MS data for crude petal extracts. The flavonol compounds identified in the petals of C. ternatea differed from those reported in previous studies. (C) 2003 Elsevier Science Ltd. All rights reserved.