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Two New Isoflavonoids and a New 2-Arylbenzofuran from the Roots of Erythrina variegata
Two new isoflavonoids, eryvarins S (1) and T (2), and a new 2-arylbenzofuran, eryvarin U (3), together with nine known compounds, were isolated from the roots of Erythrina variegata. Their structures
Antibacterial constituents from the roots of Erythrina herbacea against methicillin-resistant Staphylococcus aureus.
The new compound 2 showed a potent bactericidal activity against MRSA, which is a rare, naturally occurring 1-hydroxy-1,3-diphenylpropan-2-one derivative.
A New Biisoflavonoid from the Roots of Erythrina Variegata
Biseryvarin A is the first dimeric isoflavonoid possessing isoprenoid groups from the genus Erythrina, and showed low activity against methicillin-resistant Staphylococcus aureus and MRSA.