A series of alkyl (aryl) thio organotin compounds were synthesized as
potential trypanocidal drugs. These derivatives were prepared by the t
reatment of alkyl (or aryl) tin chlorides or oxides with thiols. Compo
unds were evaluated for trypanocidal activity using in vitro cultures
of Trypanosoma equiperdum. Their efficiency for killing the parasites
appeared to be under control of both the alkyl (or aryl) part of the m
olecule and the thio moiety. Several of the synthesized compounds exhi
bited a high in vitro levels of activity compared with the arsenic der
ivatives used for chemotherapy.