Cycloaspeptide A is a fungal metabolite that has been found in P. algidum and has antiparasitic activity.1 It is active against a chloroquine-sensitive strain of P. falciparum (IC50 = 3.5 µg/ml).
1.Dalsgaard, P.W., Larsen, T.O., and Christophersen, C.Bioactive cyclic peptides from the psychrotolerant fungus Penicillium algidumJ. Antibiot. (Tokyo)58(2)141-144(2005)