Characterization of Isoquinoline Alkaloids from <i>Neolitsea sericea</i> var. <i>aurata</i> by HPLC-SPE-NMR
作者:Shoei-Sheng Lee、Yi-Chun Lai、Chien-Kuang Chen、Li-Hong Tseng、Chen-Yu Wang
DOI:10.1021/np060636p
日期:2007.4.1
Application of the HPLC-SPE-NMR technique to identify the alkaloids in an EtOH extract of the leaves of Neolitsea sericea var. aurata led to the characterization of 14 alkaloids while consuming plant material equivalent to 1.1 g. Of these, seven are N-oxides, four of which are new, namely, 9S,17S-pallidine Nalpha-oxide (6), 1S,2S-reticuline Nalpha-oxide (8), 6R,6aS-boldine Nbeta-oxide (9), and 6S,
HPLC-SPE-NMR技术在鉴定新荔枝叶的EtOH提取物中的生物碱中的应用。Aurata导致了14种生物碱的表征,同时消耗了相当于1.1 g的植物材料。其中7种是N-氧化物,其中4种是新的,即9S,17S-巴利丁Nalpha-氧化物(6),1S,2S-网状Nline-氧化物(8),6R,6aS-丁氨酸Nbeta-氧化物( 9)和6S,6aS-N-甲基月桂tetanine Nalpha氧化物(13)。通过部分合成也证实了它们的结构。