Application of rhizoma chuanxiong total alkaloid to preparation of medicine for treating headache
A technology of total alkaloids and Ligusticum chuanxiong, which is applied in drug combinations, pharmaceutical formulas, plant raw materials, etc., to achieve good clinical application prospects, cure headaches, and reduce CGRP levels
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[0041] Embodiment 1 The preparation method of Ligusticum chuanxiong total alkaloids of the present invention
[0042] (1) Take the coarse powder of Ligusticum chuanxiong, use 80% ethanol 15 times the weight of Ligusticum chuanxiong, extract twice at 100°C under reflux for 2.5 hours each time, and concentrate the extract to obtain ethanol extract.
[0043] (2) Dissolve the ethanol extract with 1mol / L hydrochloric acid, filter, adjust the pH of the filtrate to 9-10 with concentrated ammonia water, extract with chloroform until colorless, combine the chloroform extracts, concentrate and evaporate to dryness to obtain the total Crude alkaloid A.
[0044] (3) The crude product A is enriched and purified by AB-8 macroporous adsorption resin. The purification process is that the pH of the sample solution is 8.0, the mass concentration of the sample is 4.4799mg / mL, and the sample volume is 8BV. After removing impurities with 13BV deionized water , and then eluted with 14BV of ethanol...
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