Chemical constituents of Peperomia tetraphylla (Forst. F.) Hooker et Arnott

Sixteen compounds were isolated from the whole herbs of Peperomia tetraphylla (Forst. F.) Hooker et Arnott by phytochemical methods, including eight flavonoids ( 1–3 , 6 , 7 , 14 – 16 ), three lignans ( 8–10 ), three beta sitosterols ( 4 , 5 , 11 ), and two phenolic acids ( 12 , 13 ). Their structures were identified by the analysis of NMR and MS, as well as the comparisons to the reported data. Among them, 2″-O-xylosylisoswertisin ( 14) was...