Delphinidin 3′-galloylgalactosides from blue flowers of Nymphaea caerulea
Delphinidin 3′-galloylgalactosides from blue flowers of Nymphaea caerulea
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DOI：
10.1016/s0031-9422(98)00649-9
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发表时间：
1999-04-01
期刊：
影响因子：
3.8
通讯作者：
Andersen, OM
中科院分区：
文献类型：
--
作者：
Fossen, T;Andersen, OM
从非洲睡莲（Nymphaea caerulea）的蓝色花中分离到两个新的酰基化花青素。通过色谱、电喷雾质谱、同核和异核二维NMR技术鉴定，它们分别为飞鸽苷3′-O-（2′-O-没食子酰基- β -半乳糖苷）(1)和飞鸽苷3′-O-（2′-O-没食子酰基-6′-O-乙酰基- β -半乳糖苷）(2)。与其他报道的花青素3′-糖苷不同，1和2在b环上是单糖半乳糖而不是葡萄糖，在花青素3′位置上没有糖基。本文讨论了花百合科花色素、没食子苷、半乳糖苷的化学分类意义。1999爱思唯尔科学有限公司版权所有。
Two novel acylated anthocyanins have been isolated from blue flowers of the African water lily Nymphaea caerulea (= Nymphaea capensis). By a combination of chromatography, electrospray MS and homo- and heteronuclear two-dimensional NMR techniques they were identified to be delphinidin 3'-O-(2 "-O-galloyl-beta-galactopyranoside) (1) and delphinidin 3'- O-(2 "-O-galloyl-6 "-O-acetyl-beta-galactopyranoside) (2). Contrary to other anthocyanidin 3'-glycosides reported, 1 and 2 have the monosaccharide galactose instead of glucose on the B-ring and no glycosyl moiety on the anthocyanidin 3-position. The chemotaxonomic significance of anthocyanidin galloylgalactosides in Nymphaeaceae is discussed. (C) 1999 Elsevier Science Ltd. All rights reserved.