Hydroxypropyl-belta-cyclodextrin inclusion compound of brucea fruit volatile oil, its preparation method and use
A technology of cyclodextrin inclusion compound and hydroxypropyl group, which is applied in the direction of non-active ingredients of polymer compounds, medical preparations containing active ingredients, drug combinations, etc., can solve the problems of undiscovered patents and literature, poor storage stability, clinical Application of risk and other issues to achieve the effect of improving bioavailability, good stability, and no hemolytic reaction
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Embodiment 1
[0022] The hydroxypropyl-beta-cyclodextrin clathrate of Brucea javanica volatile oil is made up of following raw material by weight ratio: Brucea javanica volatile oil: hydroxypropyl-beta-cyclodextrin=1: 1~100, it is by will The volatile oil of Brucea javanica is added to the aqueous solution containing hydroxypropyl-β-cyclodextrin, and after ultrasonic treatment at 30°C and 40KHz, it is dried to form an inclusion complex which is easily soluble in water.
[0023] Take 1g of volatile oil of Brucea javanica, 1g or 3g or 5g or 10g of hydroxypropyl-β-cyclodextrin, dissolve all of hydroxypropyl-β-cyclodextrin in 200ml, and the weight of water is hydroxypropyl-β-cyclodextrin It is 5-50 times as fine as water for injection, and it is best to use water for injection. Ultrasound at 30°C and 40KHz, add the volatile oil of Brucea javanica dropwise to the hydroxypropyl-β-cyclodextrin solution at a rate of 1-4 ml / per Minutes, after all the addition, continue to sonicate for 0.5 to 24 hour...
Embodiment 2
[0025] Dissolve hydroxypropyl-β-cyclodextrin in distilled water, the amount of distilled water added is the weight of hydroxypropyl-β-cyclodextrin: the volume of water is equal to 1:5~50; Ultrasonicate the aqueous solution of dextrin under the condition of 30°C and 40KHz, slowly add the volatile oil of Brucea javanica at a rate of 3 ml / min. μm or 0.22 μm microporous membrane, and the filtrate was freeze-dried to obtain a loose white powder, which was the inclusion compound of hydroxypropyl-β-cyclodextrin of the volatile oil of Brucea javanica. The clathrate obtained can also be washed with ether to remove the volatile oil of javanica javanica that is not clathrated.
Embodiment 3
[0027] The clathrate of the present invention in the above examples can also be prepared by other methods, such as the stirring method, that is, the aqueous solution containing hydroxypropyl-β-cyclodextrin is vigorously stirred, and the volatile oil of Brucea javanica is slowly added dropwise at a rate of 2 ml. / min, instead of the above-mentioned sonication, clathrates can also be obtained.
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