见血封喉乳汁中具有细胞毒活性的强心苷

Cytotoxic Cardenolides from the Latex of Antiaris toxicaria

从见血封喉（Antiaristoxicaria（Pers．）Lesch．）乳汁分离得到4个强心苷类化合物，经波谱数据分析，分别鉴定为：毒毛旋花子爪哇糖苷（1）、铃兰毒苷（2）、毒毛旋花子阿洛糖苷（3）和glucostmphanthidin（4）。化合物4为首次从见血封喉中分离得到。细胞毒活性测定结果表明，化合物1～4对慢性髓原白血病细胞（K562）、人胃癌细胞（SGC-7901）和人肝癌细胞（SMMC-7721）的增殖均显示了较强的生长抑制活性。

Four cardenolides were obtained from the latex of Antiaris toxicaria （Pers.） Lesch. On the basis of spectral data, they were identified as strophanthojavoside （1）, convallatoxin （2）, strophaUoside （3）, and ghcostrophanthidin （4）. Compound 4 was isolated from Antiaris toxicaria for the first time. Compounds 1 ~ 4 showed significant inhibitory activity towards chronic （SGC-7901）, and human hepatoma （SMMC-7721） cell myelogenous leukemia （K562）, human gastric carcinoma lines.