CHEMICAL INVESTIGATION OF THE RHIZOME OF TYPHONIUM GIGANTEUM ENGLER

The rhizome of Typhonium giganteum Engl. has been reported recently as effective against tuberculosis, from which three constituents have been isolated: (Ⅰ) C₂₉H₅₀O, white needle, m.p. 137—138℃, α_D²³=-36.4°(CHCl₃), was identified as β-sitosterol. (Ⅱ) C₃₅H_(60)O₆, white powder, m.p. 277—279℃ (decomp.), α_D²²=-44.5°(pyridine), was identified as β-sitosteryl-D-glucoside. (Ⅲ) C₆H₁₂O₆, colorless clustered crystals, m.p. 223—225℃, was identified as meso-inositol.