dos Santos Lourdes Campaner, da Silva Marcelo Aparecido, Rodrigues Clenilson Martins, Carbone Virginia, Napolitano Assunta, Bassarello Carla, Mari Angela, Piacente Sonia, Pizza Cosimo, Vilegas Wagner
São Paulo State University-UNESP, Institute of Chemistry, Organic Chemistry Department, CP 355, CEP 14800-900, Araraquara, SP, Brazil.
Nat Prod Commun. 2009 Dec;4(12):1651-6.
Liquid chromatography-electrospray ionization multistage ion trap mass spectrometry (LC-ESI-IT-MS(n)) was used to analyze the secondary metabolites in the methanol extract of the capitulae of Eriocaulon ligulatum. The major components were mono- and diglycosides of flavonoids and naphthopyranones. Eleven compounds, including four new flavonol glycosides, were identified based on their fragmentation patterns in MS experiments and on NMR analysis of the isolated compounds. The described data may contribute to a better understanding of the taxonomic classification of the Eriocaulaceae family.
采用液相色谱 - 电喷雾电离多级离子阱质谱法（LC - ESI - IT - MS(n)）分析了扁秆谷精草头状花序甲醇提取物中的次生代谢产物。主要成分是黄酮类和萘并吡喃酮的单糖苷和二糖苷。基于质谱实验中的裂解模式以及对分离出的化合物进行核磁共振分析，鉴定出了11种化合物，其中包括4种新的黄酮醇糖苷。所描述的数据可能有助于更好地理解谷精草科的分类学。
