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在墨西哥某些地区,雪白老鹳草(拟)Geranium nireum S.Watson 用于治疗胃肠疾病且有很好的疗效。作者曾从该植物根中分得2个新的具抗原虫活性的 A-型原花青素 geranin A 和 B,这2个化合物有望开发成新的抗原虫药。在进一步研究中,作者从该植物根的氯仿-甲醇(1∶1)提取物中最具活性的部位分得2个新的 A-型原花青素geranin C(1)和 D(2),结构分别为表-5,7,4′-三羟基黄烷-3-醇-(4β→8,2β→O→7)-桔儿茶素和表-5,7,4′-三羟基黄烷-3-醇-(4β→
In some parts of Mexico, Geranium nireum S. Watson is used for the treatment of gastrointestinal diseases and has a good effect. The authors had previously obtained two new antiprotozoal active A-type procyanidins geranin A and B from the plant roots. These two compounds are expected to be developed into new anticoccidial drugs. In a further study, the authors obtained two new A-type proanthocyanidins, geranin C(1) and D(2), from the most active part of the chloroform-methanol (1:1) extract from the plant roots. Table-5,7,4′-trihydroxyflavan-3-ol-(4β→8,2β→O→7)-cocumber and Table-5,7,4′-trihydroxyflavan- 3-Alcohol-(4β→