Sajeli Begum A, Sahai Mahendra, Fujimoto Yoshinori, Asai K, Schneider Kathrin, Nicholson Graeme, Suessmuth Roderich
Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, India.
Nat Prod Res. 2006 Nov;20(13):1231-6. doi: 10.1080/14786410600905816.
A new flavonol glycoside, kaempferol 3-O-alpha-L-arabinopyranosyl-7-O-beta-D-glucopyranoside (1), has been isolated from methanol extract of leaves of Datura suaveolens (Solanaceae), along with six other known compounds, which include kaempferol 3-O-alpha-L-arabinopyranoside (2), 3-phenyl lactic acid, 3-(3-indolyl) lactic acid, and its methyl ester, physalindicanol A and physalindicanol B. The structural elucidation of 1 and characterization of the known compounds are based on detailed spectral analysis (ESI-FTICR-MS and 2D-NMR). This is the first report of isolation of these compounds from this plant.
从白花曼陀罗（茄科）叶片的甲醇提取物中分离出一种新的黄酮醇苷，山柰酚3-O-α-L-阿拉伯吡喃糖基-7-O-β-D-葡萄糖苷（1），以及其他六种已知化合物，包括山柰酚3-O-α-L-阿拉伯吡喃糖苷（2）、3-苯基乳酸、3-（3-吲哚基）乳酸及其甲酯、酸浆苦素A和酸浆苦素B。化合物1的结构解析及已知化合物的表征基于详细的光谱分析（电喷雾傅里叶变换离子回旋共振质谱和二维核磁共振）。这是首次从该植物中分离出这些化合物的报道。
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