A xanthone, montrouxanthone and a dihydroisocoumarin, montroumarin were iso
lated From the stem balk of Montrouziera sphaeroidea Pancher Ex Planchon et
Triana [Guttiferae], along with two known compounds. Their structures were
elucidated on the basis of spectroscopic analyses. This is the first repor
t of the analysis of chemical constituents of Montrouziera species. (C) 200
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