Chemical constituents of the aerial part of Derris elliptica.

Abstract A new coumaronochromone, 6,4′-dihydroxy-7,5' -dimethoxy-coumaronochromone ( 1 ), together with eleven known flavonoids ( 2 – 12 ) were isolated from the ethanol extract of the aerial part of Derris elliptica . Their structures were elucidated on the basis of spectroscopic analysis. Compounds 2 , 4, 7, 8 and 9 exhibited moderate insecticidal activities against larvae of Aedes albopictus . All compounds showed strong cytotoxic activities against Spodoptera litura (SL) and Trichoplusia ni BTI-Tn-5B1-4 (Hi-5) cells comparison to positive control of rotenone.