摘要
前文曾报道从红根草(Salvia prionitis Hance)中分得新二萜醌类化合物去氢丹参新酮,红根草对醌,3-羰基红根草对醌及新天然产物红根草邻醌等成分。在进一步研究红根草的活性成分时,又分得一新的二萜醌类化合物——红根草内酯(Ⅰ)。红根草内酯为浅黄色棱形结晶,熔点205—206℃,分子式 C_(15)H_(14)O_3(~1H RMS M^+242.0938)。红外光谱示 v-内酯(1750cm^(-1)),芳香环(1505,1485 cm^(-1))
A new diterpenoid,salpriolactone,was isolated from the roots Salvia prionitis Hance (Labiatea) as yellow prisms crystals C_(15)H_(14)O_3 (HRMS),rap.205—206℃.Its structural elucidation was based on spectroscopic data.
