These substances were L-arginine hydroxamate, miltefosine, D,L—serine hydroxamate, D- serine, glycine hydrochloride, sodium caprylate, blasticidin hydrochloride, thioridazine hydrochloride, 6-azuracil, thialysine, malic acid, tartaric acid, 5-fluorocytosine, chloroquine, cinnamic acid and 5-fluorouracil.