Publications by authors named "Ulrich Dzo Defokou"

Two -kaurene diterpenoids, -15--acetyloxy-kaur-16-en-19-oic acid (xylopic acid) and -7-oxo-kaur-16-en-19-oic acid were isolated from the fruits of . Chemical manipulation of xylopic acid yielded -kaurane derivatives , , , and . Their structures were elucidated by spectroscopic analysis, including 1 D- and 2 D-NMR spectroscopies.

View Article and Find Full Text PDF

3-O--D-glucopyranosyl gouanogenin A (), a new naturally occurring dammarane class of triterpene glucoside, has been isolated from the aerial parts of along with six known secondary metabolites . Their structure was elucidated through spectroscopic data including 1 D- and 2 D-NMR. The compounds and showed significant antioxidant potential in DPPH radical scavenging assay.

View Article and Find Full Text PDF