Studies on the constituents of Xanthoceras sorbifolia Bunge. III. Minor prosapogenins from the fruits of Xanthoceras sorbifolia Bunge.

The prosapogenins from the fruits of Xanthoceras sorbifolia BUNGE (Sapindaceae) were examined. On the basis of chemical and spectral analyses, the structures of three minor prosapogenins, obtained by acid hydrolysis of crude saponin fraction, were characterized as 21-O-(3, 4-di-O-angeloyl)-β-D-fucopyranosyl theasapogenol B (1), 21-O-(4-O-acetyl-3-O-angeloyl)-β-D-fucopyranosyl theasapogenol B (2) and...