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Compound 1, Icariin; 2, Icariside I; 3, Icariside II; 4, Icarisoside A; 5, Epimedoside C; 6, Limonianin; 7, 8–5’ diprenyl apigenin; 8, Epimedokoreanin B; 9, Neophellamuretin; 10, 8-prenyl luteolin; 11, Broussonol D; 12, Anhydroicaritin; 13, Euchresta flavanone A; 14, Sagittatoside A; 15, Korepimeside A; 16, Desmethylicaritin; 17, Epimedokoreanin C.
