2-Methoxy-1H-phenalen-1-one (2-Methoxyphenalen-1-one) displays significantly enhanced activity against Mycosphaerella fijiensis in comparison with other phenylphenalenones.
(4Z,6E)-5-hydroxy-1,7-bis(4-hydroxyphenyl)hepta-4,6-dien-3-one shows growth inhibitory activity in vitro versus bloodstream forms of African trypanosomes, with the IC(50) value in the range of 1-3 microg/mL.
1-Methyl-2-nonylquinolin-4(1H)-one has anti-inflammatory activity, it exhibits inhibitory activity on leukotriene biosynthesis in a bioassay using human polymorphonuclear granulocytes, with IC50 values of 12.1 microM.