These compounds exhibited modest selectivity
(therapeutic) indices (IC50 value for cytotoxicity divided by
IC50 value for antiparasitic activity) of up to 10. This was followed
by compounds 2, 8, 1, 15 and 12, with less potent antileishmanial
activities (IC50 values 1.38e3.37 mg/mL), but
higher selectivity indices against mammalian cells