Abstract:
Three medicinal plants namely; Acacia nilotica (bark), Rumex
vesicariuos (roots) and Adansonia digitata were subjected to phytochemical
studies to investigate their flavonoids .
The plant material in each case was extracted by ethanol to give a crude
product.The three crude products were subjected to column chromatography
and isolated by thin layer chromatography. The isolated compounds were
subjected to IR, UV, 1HNMR and mass spectrometry.
The spectral data indicated that the flavonoid of Acacia nilotica
(compound I) is a dihydroflavonol. Antibacterial studies indicated that
compound I is active against some (G+ , G- ) bacteria.
O
O
OH
OH
HO
CH2
O O
compound I
The spectral data indicated that the flavonoid of Rumex vesic arius
(compound II)is a bidihydrochalcone. Antibacterial studies indicated that
compound II is active against some (G+ , G- ) bacteria.
O
O
HO
HO
CH3
CH3
OCH3
OCH3
O
Compound II
The spectral data indicated that the flavonoid of Adansonia digitata
(compound III) is a bidihydrochalcone. Antibacterial studies indicated that
compound III is active against some (G+, G-) bacteria.
O
O
CH3
CH3 O
OH
CH OH 3
CH3
Compound III
