Two new triterpenoid sulfates were isolated from the fresh leaf blades of Schefflera octophylla (Araliaceae). On the basis of results of spectral and chemical investigations, their structures were characterized as free forms of 3-epi-betulinic acid 3-O-sulfate and betulinic acid 3-O-sulfate.
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Kitajima et al. (1990) studied this question.