Triterpenoid saponin-type compounds of shinyleaf yellowhorn, as well as preparation method and application of compounds
A technology of triterpene saponins and compounds, applied in the field of medicine, to achieve a good effect of inhibiting activity
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Embodiment 1
[0055] Example 1 The preparation method of Xanthos sorbifolia husk and fruit stalk extract 1.
[0056] Take 7kg of dried sorbifolia husk and stalk (collected in Chifeng City, Inner Mongolia in 2011), crush them, then add 70% ethanol according to the weight-to-volume ratio of 1:8, and reflux extraction for 3 times, each time for 2h. The resulting extract was concentrated by recovering the solvent under reduced pressure. The concentrated solution was extracted three times with equal volumes of ethyl acetate and n-butanol successively to obtain n-butanol extracts from the husk and peduncle of the fruit, and the solvent was removed, and the obtained brown extract was Extract 1 (350 g).
Embodiment 2
[0057] Embodiment 2: the preparation method of sorbifolia sorbifolium husk and fruit stalk extract 2.
[0058] Take 7kg of dried sorbifolia husk and stalk (collected in Chifeng City, Inner Mongolia in 2011), crush them, then add 70% ethanol according to the weight-to-volume ratio of 1:8, and reflux extraction for 3 times, each time for 2h. The resulting extract was concentrated by recovering the solvent under reduced pressure. The concentrated solution was separated and purified by macroporous resin (AB-8), and ethanol-water was used as solvent for gradient elution, and the 30%-80% ethanol extract was collected, and the obtained light yellow powder was the extract 2 (250g).
Embodiment 3
[0059] Example 3: Isolation of oleanene pentacyclic triterpene saponins from sorbifolia husk and stalk.
[0060] Get 9 kg of dry Xanthos sorbifolia husk and stalk (collected in Chifeng, Inner Mongolia in September, 2011), according to the preparation method of the extract in Example 1, reflux extraction with 70% ethanol for 3 times, the ratio of solid to liquid is 1:8, every After 2h, the solvent was recovered under reduced pressure and concentrated to 10L. Extract 3 times with equal volumes of ethyl acetate and n-butanol respectively to obtain 90 g of ethyl acetate extract and 450 g of n-butanol extract.
[0061] Get n-butanol extract 450g, carry out gradient elution with silica gel open column chromatography with dichloromethane:methanol:water (50:1:1-1:1:1) as the mobile phase, and the resulting fractions are subjected to silica gel thin-layer chromatography Fractions 1-5 were pooled as a guide for identical fractions.
[0062] Take Fraction 1 (dichloromethane: methanol: ...
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