A new isoflavonoid, 5-hydroxy-3-(4-hydroxyphenyl)-8-isopropenyl-8,9-dihydro-4H-furo-[2,3-h]-chromen-
4-one named derrisisoflavone G (1), four known prenylated flavanones (2–5), four known
isoflavonoids (6–9) and two phenolic derivatives (10, 11) have been isolated from crude extracts of Derris
ferruginea stems and leaves. Compounds 1–11 were identified using spectroscopic methods whereas an
unambiguous structural assignment of 1 was accomplished through hemi-synthesis. Compounds 2–5
exhibited strong in vitro antiparasitic activity against Plasmodium falciparum and Leishmania major but
with poor selectivity, whereas 1–5 significantly inhibited the formation of advanced glycation
endproducts (AGEs).