Compound in xanthoceras sorbifolia shell, and preparation method and application thereof
A technology of compounds and compound structural formulas, applied in the field of medicine, can solve the problem of AD without specific drugs and other problems
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Embodiment 1
[0035] The method for extracting and separating new compound in the Chinese crown fruit shell of the present invention, concrete steps are as follows:
[0036] Get 9.5 kg of sorbifolia husks, pulverize, sieve, and extract 3 times with 70% ethanol under reflux, each time for 2 hours, and the amount of each extraction solvent is 8, 6, and 4 times of the amount of medicinal materials respectively; the combined filtrate, The solvent is recovered under reduced pressure, evaporated to dryness to obtain the extract of Xantho sorbifolium husk; the extract is dispersed in deionized water, prepared as a sample solution for macroporous adsorption resin column chromatography, and loaded on the D101 type macroporous adsorption resin column chromatography, Absorbed overnight; the next day, gradient elution was performed with pure water, 50% ethanol, 70% ethanol, and 95% ethanol to obtain several fractions, and the solvent was recovered under reduced pressure, and the extract of each fraction...
Embodiment 2
[0039] 3-O-β- D -glucopyranosyl(1→6)-(2’-angeloyl)-β- D -glucopyranosyl-28-O-β- D -glucopyranosyl(1→6)[α- L -rhamnopyranosyl(1→2)-β- D Structural identification of -glucopyranosyl]-21-O-acetyl-16-deoxybarringtoenol C
[0040] The compound is white powder (methanol), mp 220~230°C; (c 0.065MEOH); Liebermann-Burchard reaction was positive, and 10% concentrated sulfuric acid-ethanol solution was purple, suggesting that the compound might be a triterpenoid saponin compound; HR-ESI-MS gave m / z 719.3356[M+2Na ] + (calcd for 719.3355), IR(KBr)V max 3425, 2922, 1647, 1631, 1401, 1269, 1008cm -1 ; Determine that the molecular formula of this compound is C in conjunction with NMR spectrum 67 h 108 o 30 .
[0041] 1 H-NMR spectrum gives 7 characteristic angle methyl signals in the high field region, δ0.89(3H,s),0.97(3H,s),1.00(3H,s),1.03(3H,s), 1.06(3H, s), 1.15(3H, s), 1.19(3H, s); the signal of 12-position hydrogen proton δ5.48(1H, brs), suggesting that it may be an oleanan...
Embodiment 3
[0048] Compounds of the present invention are anti-Aβ 25-35 Protective effect of induction of PC12 cell injury
[0049] 1. Cell Culture
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