Flavan-3-ols and an A-type proanthocyanidin have been isolated from se
eds of Lupinus angustifolius. The structures of these compounds were e
stablished by spectral analyses. The presence of (-)-epicatechin and t
wo (-)-epicatechin derivatives with an additional pyran ring condensed
at C-7 and C-8 of the epicatechin moiety and an A-type proanthocyanid
in was demonstrated.