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New isoflavones and flavanol from Iris potaninii
Ondognii Purev1, Cserendash Purevsuren, Samdan Narantuya
1Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar. Opurev47@yahoo.com
Chemical & Pharmaceutical Bulletin
|October 10, 2002
Abstract:
Two new isoflavones, 6, 3', 4'-trimethoxy-7, 8, 5'-trihydroxyisoflavone (1), 7, 4'-dimethoxy-8, 3', 5'-trihydroxy-6-O-beta-D-glucopyranosylisoflavone (2), and 5, 3, 3'-trihydroxy-7, 4'-dimethoxyflavanone (3) have been isolated from the underground parts of Iris potaninii along with known isoflavones (4-8) and iriflophenone (9). The structures of the new compounds were determined using NMR and mass spectroscopic methods.