セネガ根の成分研究(第1報) : 配糖体の分離と定性

抄録

Three kinds of saponin, named senegin-II, -III, and -IV, were isolated from Senegae radix (root of Polygala senega LINNE var. latifolia TORRY et GRAY, Polygalaceae). Senegin-II, C₇₀H₁₀₄O₃₂·4H₂O, colorless needles, mp 247-248°, is a glucoside of presenegenin bonded with rhamnose, fucose, xylose, galactose, glucose, and 3, 4-dimethoxycinnamic acid. Senegin-III, C₆₉H₁₀₂O₃₁·4H₂O, crystalline powder, mp 247-248°(decomp.), is a glucoside of presenegenin bonded with rhamnose, fucose, galactose, glucose and 4-methoxycinnamic acid. Senegin-IV, C₇₅H₁₁₂O₃₅·4H₂O, crystalline powder, mp 250°(decomp.), is a glucoside of presenegenin bonded with 2 moles of rhamnose, fucose, xylose, galactose, glucose, and 4-methoxycinnamic acid. In addition to these substances, the presence of 1, 5-anhydro-D-sorbitol and phenolic glycosides was detected.