Active ingredients, extraction method and application in the preparation of neuroprotective drugs
An active ingredient, the technology of Radix chinensis, applied in the field of pharmacy, can solve the problem of not having Radix chinensis and other problems, and achieve the effects of no cytotoxicity, less technical difficulty, and abundant resources.
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[0037]The heterospermia active ingredient, which includes a pier-type triterpenoid sapase-based compound and / or a phenycetonitrile compound, and the structural formula of the ostrid acid-type triterpenoid saponide compound 1 is shown below:
[0038];
[0039]The structural formula of the phenylacetitrid compound 2 is as follows:
[0040].
[0041]The method of preparing the active ingredient of the above-mentioned cyancy is specifically including the steps of:
[0042]1) Three times of flashing of the brittle blue-razor or fried blue 葙子 9.5kg using 50% ethanol 50L (first flash extraction 3 min, second flash extraction 5 min, the third flashes 5 min) Ethanol gradient elution, 20% ethanol eluent, reduced pressure recovery solvent, resulting in 20% ethanol dipping A; 60% ethanol eluent, reduced pressure recovery solvent, resulting in 60% ethanol dip B;
[0043]2) Dissolve 20% ethanol dip, dissolve with 20 ml of methanol, silica gel, via thin layer chromatographic silica gel chromatography, select a vo...
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