Studies on the antihemorrhagic substances in herbs classified as hemostatics in chinese medicine. IX. On the antihemorrhagic principles in Typha lactifolia L.

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Abstract
By following the antihemorrhagic activity according to Tajima''s method,2'' two antihemorrhagic principles, a new flavonol glucoside (1) and an unknown compound (2), were isolated from the dried pollen of Typha latifolia L., which is one of the most important herbs for treatment of stagnant blood and bloody stools in traditional Chinese medicine. The structure of 1 was established as isorhamnetin 3-rutinoside-7-rhamnoside (3-[6-O-(6-deoxy-.alpha.-L-mannopyranosyl)-.beta.-D-glucopyranosyl]oxy-5-hydroxy-7-[.beta.-L mannopyranosyl]oxy-2-(4-hydroxy-3-methoxyphenyl)-4H-1-benzopyran-4-one), based on chemical transformations and spectral data.