中文摘要：

目的：研究产自云南省香格里拉地区的腺叶香茶菜（Isodon adenolomus）地上部分的化学成分;方法：利用正反相硅胶、高效液相色谱等现代分离技术进行分离;通过IR,UV,MS,NMR等波谱方法鉴定了化合物结构式;对化合物1进行了单晶X-衍射分析,确定了其绝对构型;化合物2-5和10进行了细胞毒活性测定;结果：分离得到7个对映-贝壳杉烷二萜,1个对映-松香烷二萜和两个松香烷二萜;结论：Isoadenolins M-O（1-3）为新化合物,且化合物2-4和10表现出了一定细胞毒活性。

英文摘要：

AIM：To study the chemical constituents of the aerial parts of Isodon adennolmus collected in the Shangrila region of Yunnan Province,China.METHOD：Compounds 1-10 were separated and purified by silica gel and C18 reversed phase silica gel column chromatography.The structures were elucidated by extensive spectroscopic methods（IR,UV,MS and NMR）,and the absolute configuration of 1 was determined by single crystal X-ray diffraction analysis.Compounds 2-5 and 10 were evaluated for their in vitro cytotoxicity against human tumor cell lines,HL-60,SMMC-7721,A-549,MCF-7,and SW-480.RESULTS：One ent-abietane,two abietane,and seven ent-kaurane diterpenoids were isolated and identified.CONCLUSION：Compounds 1-3 are new diterpenoids.Compounds 2-4 and 10 showed moderate inhibitory effects on several of the five tumor cell lines.