OBJECTIVE
To study the chemical constituents from the stems of Clausena excavata.
METHODS
The constituents were isolated by various chromatographic techniques(silica gel, RP-MPLC and PHPLC) and their structures were determined on the basis of their spectroscopic data, as well as
Four known coumarins, dentatin (1), nor-dentatin (2), clausenidin (3) and xanthoxyletin (5), and six known carbazole derivatives, 3-formylcarbazole (6), mukonal (7), 3-methoxycarbonylcarbazole (8), murrayanine (9), 2-hydroxy-3-formyl-7-methoxycarbazole (10) and clauszoline J (11) were isolated from