C-methylated and C-prenylated isoflavonoids from root extract of Desmodium uncinatum

Three isoflavonoids, uncinacarpan (1), uncinanone D (3) and uncinanone E (4), along with three known compounds were isolated from the roots of Desmodium uncinatum, which induced germination of Striga hermonthica seeds. The isolated compounds were characterised by spectroscopic methods.