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茜草为茜草科植物(Rubia cordifolia L.)的干燥根,是常用中药。性苦、寒,具凉血、止血,活血去瘀等功效。茜草的化学成分文献有较多报道,为茜草素、茜草酸、羟基茜草素、大黄素甲醚、醌茜等,多系蒽醌类化合物。我们从茜草根中首次分离得到一非蒽醌的成分,为黄色片状结晶。经鉴定,证明为3’-甲氧羰基-4’-羟基-6,6-二甲基萘骈(1’,2’-2,3)吡喃。与刘永隆等报道的从大叶茜草中分离得到的大叶茜草素(rubimaillin)结构一致。
Rubia cordifolia plants (Rubia cordifolia L.) of the dry root, is commonly used traditional Chinese medicine. Sexual bitter, cold, with cooling blood, bleeding, blood stasis and other effects. Rubiaceae chemical composition of the literature have more reports, for the phletilisin, oxalacetic acid, hydroxymatropin, physcion, quinizarin, etc., multi-line anthraquinone compounds. For the first time, we isolated a non-anthraquinone component from the root of Madder Grass, as a yellow flaky crystal. It has been identified as 3’-methoxycarbonyl-4’-hydroxy-6,6-dimethylnaphthalene (1 ’, 2’-2,3) pyran. It is consistent with the rubimaillin structure reported by Liu Yonglong et al.