Studies on the Chemical Constituents of Clematis Parviloba Gardn. et Champ. and Vitex Trifolia L.

Abstract: 1. Studies on the Chemical Constituents of Clematis parvilobaGardn. et ChampClematis parviloba Gardn. et Champ belongs to the Ranunculaceae family,which distributes in Yunnan, Sichuan, Guizhou, Guangdong, and Guangxi provincesof China. It has been used as a substitute of C. armandii in Yunnan province to treathydropsy, gonorrhea, and arthralgia. It is also widely used as a diuretic, galactopoietic,emmenagogue as well as anti-inflammatory and antitumor agent. Up to date, chemicaland biological work on this plant have never been carried out. As a result, weproceeded a phytochemical investigation of it in order to clarify the chemicalconstituents of it and search for active compounds.59 compounds were isolated from the ethanol extract of the stems of C.parviloba collected in Xishuangbanna of Yunnan province by using various modernchromatographic techniques. On the basis of classical chemical methods and modernspectrometric approaches, the structures of 58 compounds among them wereestablished. Of the 58 compounds identified, 5 compounds were found to be new ones,22 compounds to be isolated from this genus for the first time and the rest wereisolated from this plant for the first time.5 new compounds including 1 triterpenoid saponin, 3 saccharide ester, and 1aromatic glycoside were identified as 23-O-acetyl-hederagenin-3-O-β-D-ribopyranosyl-(1

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