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

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