Determination of Aglycone Chirality in Dihydroflavonol 3-O-α-L-Rhamnosides by ^1H-NMR Spectroscopy
作者： John DE BRITTO , Visuvasam Soosai MANICKAM , Subbarayan GOPALAKRISHNAN , Toshiyuki USHIODA , Nobutoshi TANAKA
DOI: 10.1248/CPB.43.338
关键词:
摘要: Three dihydroflavonol glycosides, 3-O-α-L-rhamnosides of (2S, 3S)-, (2R, 3R)- and 3S)-5, 7, 3', 4'-tetrahydroxydihydroflavonol, were isolated from Sphaerostephanos arbuscula as the first example dihydroflavonols ferns. Aglycone chirality was determined by 1H-NMR data.
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