A study of the phagoinhibitor and anti-moulting activities of
the Brazilian Melia azedarach, collected in the State of Rio
de Janeiro, Brazil, allowed the isolation of four lignanes
identified as pinoresinol (1), bis-epi-pinoresinol (2), the
hemicetal (3) and the diacid (4). These substances are devoid
of anti-moulting activity.
