Triterpenes from the Fruits of Phellodendron chinense Schneid var. glabriusculum Schneid

AIM: To investigate the chemical constituents from the fruits of Phellodendron chinense Schneid var. glabriusculum Schneid. METHODS: The constituents of ethyl acetate-soluble portions in the 95% ethanol extract were iso-lated and purified by various chromatographic methods. Their structures were identified by their physicochemical characteris-tics and spectral data. RESULTS: Eight known compounds were isolated and identified as piscidinol A(1), phellochin(2), niloticin (3), dihydroniloticin (4), 21, 23-epoxy-21α, 24, 25-trihydroxytirucalla-7-en-3-one (5), 2α, 25-dimethylmeliano-diol-[(21R, 23R)-epoxy-24-hydroxy-21α, 25-methoxy]tirucalla-7-en-3-one (6), boujotinolone A (7), 3-ketooleanane(8). CONCLUSION: Compounds 5～8 are isolated from Phellodendron chinense Schneid var. glabriusculum Schneid. for the first time.