Chemical constituents of flowers and fruits of Rabdosia excisa

AIM: To study the chemical constituents in the flowers and fruits of Rabdosia excisa. METHODS: The compounds were isolated and purified by silica gel column chromatography and their structures were identified by spectroscopic methods. RESULTS: Sixteen compounds isolated from the flowers and fruits of this plant were identified as: stigm asterol ( I), alpha-amyrin palmitate (II), ursolic acid (III), 2 alpha, 3 alpha, 19-trihydroxy-urs-12-en-28-oic acid (IV), 2 alpha-hydroxyursolic acid (V), maslinic acid (VI), isodonal (VII), maoyecrystal E (VIII), kamebakaurin (IX), macrocalyxin G (X), epinodosinol (XI), rabdosichuanin C (XII), kamebacetal A (X III), oridonin ( X IV), enmenol-glucoside (X V), and lasiononin (X VI). CONCLUSION: All the constituents were found in Rabdosia excisa for the first time, except constituents III, IX, XII and X IV.