Studies on the New Constituents of Sal via Miltiorrhiza Bunge

Two novel constituents were isolated from the roots of Chinese medicinal herbs, Salvia miltiorrhiza. Their structures were determined by spectroscopic technique. The compounds were named 13,14-dihydroxy-15-methyl-benzo[2,3-a]-7,7-dimethyl-12-oxa-tricyclo[4,4,21.4,0]dodecane(1) and 16-methyl-tropono[2,3-c]-7,7-dimethyl-12-oxa-tricyclo[4,4,21.4,0]dodecane(2).

雷山石杉的化学成分研究

目的研究雷山石杉的化学成分。方法使用制备薄层、硅胶柱色谱、SephadexLH-20及半制备高效液相色谱法等手段进行分离、纯化，结合文献资料、理化性质、1H—NMR及13C-NMR数据进行结构鉴定。结果分离得到10个化合物，分别鉴定为（15R）-12，16-epoxy-11，14-dihydroxy-8，11，13-abietatrien-7-one（Ⅰ），21-epi—serratenediol-3，21-acetate（Ⅱ），setTatene—diol-3-acetate（Ⅲ），21-epi—serratenediol-3-acetate（Ⅳ），21a—hydroxy—serrat-14-en-3β-ol（Ⅴ），21β-hydroxy—serrat-14-en-3β-ol（Ⅵ），石杉碱甲（huperzineA，Ⅶ），蔗糖（Ⅷ），β-谷甾醇（Ⅸ），胡萝卜串（Ⅹ）。结论化合物Ⅰ～Ⅹ均首次从该植物中分离到。

Three New Diterpenoids from Euphorbia wallichii

Three new abietane diterpene lactones, 3-hydroxyjolkinolide A (1), ent-8,14-dihydroxy-13(15)-ene-16(12)- abietanolide (2) and ent-8,14-dihydroxy-13(15)-ene-16(12)-abietanolide (3) as well as a known abietane diter-pene jolkinolide A (4) were isolated from the roots of Euphorbia wallichii. Their structures were elucidated on the basis of spectroscopic analysis.