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Figure 1: Chemical structures of flavonoids and triterpene from leaves of Manilkara subsericea (1: Myricetin R1 = R2 = R3 = R4 = OH, 2: Quercetin R1 = R2 = R4 = OH, R3 = H, 3: Kaempferol R1 = R3 = H, R2 = R4 = OH, 4: Myricitrin R1 = R2 = R3 = OH, R4 = Orha, 5: Quercitrin R1 = R2 = OH, R3 = H, R4 = Orha, 6: Pomolic acid) |
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