Abstract
A new chromone, named 5,6-dihydroxy-2-methylchromone (FL-2), along with seven known flavonoids, 5-hydroxy-7,3,3′,4′-tetramethoxyflavone (FL-3), 5,4′-dihydroxy-6,7,8-trimethoxyflavone (FL-4), 5,4′-dihydroxy-7,8-dimethoxyflavone (FL-5), 4-methoxychalcone (FL-6), 7,4′-dimethoxyapigenin (FL-7), 5,7,4′-trihydroxy-2′,3′,6′-trimethoxyisoflavone (FL-8 a rare flavonoid), acacetin-7-O-glucoside (FL-9) and acacetin-7-O-neohesperidoside (FL-10), and β-sitosterol-d-glucoside (FL-1) have been isolated from the leaves of Ficus lyrata. Their structures have been established on the basis of chemical and spectral evidence (IR, UV,
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H NMR,
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C NMR and mass spectra).