Steroids and Terpenoids from the Bark of Phyllanthus acidus.

HA5 and HA6 were combined and fractionated over a silica gel 60F254 (230-400 mesh ASTM) column eluted with hexane, hexane-CH SB 2 sb Cl SB 2 sb , CH SB 2 sb Cl SB 2 sb , and CH SB 1 sb Cl SB 2 sb -CH SB 3 sb OH to give compounds B 3 b (23.0 mg) and B 4 b (6.5 mg); Frs. As part of our ongoing investigation of bioactive compounds from plant species [[12]], we now investigate the natural compounds of I P. acidus i . All these compounds were isolated for the first time from I P. acidus i , except for compound B 6 b [[14]]. The extraction of the bark of I P. acidus i afforded three steroids, 7-oxo- -sitosterol ( B 1 b ), -sitostenone ( B 2 b ), and -sitosterol ( B 3 b ); and four terpenoids, 17 -hydroxy-norlup-20(29)-en-3-one ( B 4 b ), glochidon ( B 5 b ), phyllanthol ( B 6 b ), and squalene ( B 7 b ). [Extracted from the article]