Cyclodextrin inclusion compound containing ligustilide, and preparation method thereof
A technology of cyclodextrin inclusion complex and ligustilide, which is applied in the field of biomedicine and can solve the problems of inconvenient storage and preparation, instability and the like
Inactive Publication Date: 2011-10-12
上海港太药业发展有限公司
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- Description
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AI Technical Summary
Problems solved by technology
The chemical properties of ligustilide are very active, and with the continuous increase of the content of ligustilide in the extract, the instability of ligustilide becomes more prominent, and it is easy to isomerize into other butenylfuralide compounds It can also be oxidized into a variety of complex products and finally disappear after being left for a long time, which brings great inconvenience to preservation and preparation
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] Preparation of Hydroxypropyl Beta Cyclodextrin Aqueous Solution
[0033] Dissolve 50g of hydroxypropyl beta-cyclodextrin in 50ml of water, stir evenly, add povidone K29 / 32, and dilute to 100ml with water.
[0034] Preparation of clathrate solution
[0035] Under rapid stirring, 10 g of ligustilide and the prepared aqueous solution of hydroxypropyl beta cyclodextrin were mixed until transparent, and diluted to 200 ml with water.
[0036] Preparation of clathrates by freeze-drying
[0037] The clathrate solution prepared above is placed in an ampoule suitable for freezing and with a stopper, and placed in a freeze dryer.
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The invention provides a cyclodextrin inclusion compound containing ligustilide, comprising ligustilide and hydroxypropyl-beta-cyclodextrin, wherein the ligustilide is included in the hydroxypropyl-beta-cyclodextrin to form an inclusion compound, the percentages by weight of the ligustilide and the hydroxypropyl-beta-cyclodextrin are 10-20%, and the cyclodextrin inclusion compound further contains povidone K29 / 32 which accounts for 10-50% of the hydroxypropyl-beta-cyclodextrin by weight. The cyclodextrin inclusion compound containing the ligustilide can be prepared into tablets, capsules, powder or powder injections as medicaments for treating dysmenorrhea.
Description
technical field [0001] The invention belongs to the field of biomedicine, and in particular relates to a cyclodextrin inclusion compound containing ligustilide and a preparation method thereof. Background technique [0002] Ligustilide is the main active ingredient in the volatile oils of Angelica and Chuanxiong, which are commonly used in traditional Chinese medicine, accounting for 35% and 58% of the volatile oils of Angelica and Chuanxiong respectively. It is an important indicator for evaluating the quality of Chinese medicinal materials such as Angelica and Chuanxiong. Ligustilide has a variety of biological activities such as antispasmodic, cough and asthma, menstrual regulating and pain relief, but its in-depth preparation research is almost blank. With continuous improvement, the instability becomes more prominent and becomes a bottleneck restricting high-quality preparations. [0003] The content of ligustilide in medicinal materials varies greatly depending on the...
Claims
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Patent Timeline
Login to View More IPC IPC(8): A61K31/365A61K47/40A61K9/20A61K9/48A61K9/14A61P11/14A61P11/06A61P15/00A61P29/00
Inventor 杨岩
Owner 上海港太药业发展有限公司
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