Abstract A series of new 4-alkapolyenylpyrrolo [1, 2-a] quinoxaline derivatives, original and structural analogues of alkaloid chimanine B and of previously described 4-alkenylpyrrolo [1, 2-a] quinoxalines, was synthesized in good yields using efficient palladium-catalyzed Suzuki–Miyaura cross-coupling reactions. These new compounds were tested for in vitro antiparasitic activity upon three Leishmania spp. strains. Biological results showed activity ...