Chromenes from Peperomia serpens (Sw.) Loudon (Piperaceae)

Chromatographic separation of the CH2Cl2 extract from leaves of Peperomia serpens yielded two chromenes 1 and 2, besides two known compounds. The structural elucidations of these compounds were achieved by spectrometric analysis. Antifungal activities of the crude extract and the isolated chromenes were measured bioautographically against Cladosporium cladosporioides and C. sphaerospermum. This analysis indicated that crude extract showed higher potential as compared to pure compounds.