Two new ceramides from the stems of Piper betle L.

Two new ceramides, (2S,3S,4R)-2-N-[(2′R)-2′-hydroxypentacosanoylamino]-nonacosane-1,3,4-triol (1) and (2S,3S,4R,8E)-2-N-[(2′R)-2′-hydroxytetracosanoylamino]-8-eicosylene-1,3,4-triol (2) have been isolated from the stems of Piper betle L. collected from Baoshan city of Yunnan Province in China. Their structures were determined by spectroscopic and chemical methods.