Isolation and identification of Withaphysalins from Physalis minima

To investigate the chemical constituents of Physalis minima L.,compounds were isolated by chromatographic methods from Physalis minima L.. Their structures were determined on the basis of spectral analysis. Five compounds were isolated and identified as Withaphysalin P(Ⅰ),14,18-di-O-acetylwithaphysalin C(Ⅱ), Withaphysalin Q(Ⅲ),Withaphysalin 1(Ⅳ) and Withaphysalin 2(Ⅴ). Compounds Ⅳ and Ⅴ are new compounds,orderly named as Withaphysalin T and Withaphysalin U.