Orixine hydrochloride as well as preparation method and medical application thereof

A technology of fushenzine hydrochloride and hydrochloric acid gas, which is applied in the field of fushenzine hydrochloride and its preparation, and can solve problems such as the difficulty of large-scale production of fushenzine

Inactive Publication Date: 2016-05-04
INST OF CHINESE MATERIA MEDICA CHINA ACAD OF CHINESE MEDICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, the present inventor has established a set of process for the preparation of halosine hydrochloride with simple process, controllable quality and moderate yield, thereby solving the problem that halosine hydrochloride is difficult to produce on a large scale, and the efficacy of halosine hydrochloride also improved

Method used

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  • Orixine hydrochloride as well as preparation method and medical application thereof
  • Orixine hydrochloride as well as preparation method and medical application thereof
  • Orixine hydrochloride as well as preparation method and medical application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation of embodiment 1 halosine hydrochloride

[0034] Take the coarse powder of Changshan medicinal materials, extract by 70% ethanol heat reflux, recover the solvent from the extract until it has no alcohol smell, first add concentrated hydrochloric acid to adjust the pH value to about 2.5, then add chloroform to extract to remove acidic impurities, add concentrated ammonia water to the raffinate phase to adjust the pH value to about 9.0, then add chloroform for extraction, and recover the solvent from the chloroform extract to obtain the total alkaloids of Changshan.

[0035] Add absolute ethanol to the obtained total alkaloids of Changshan to dissolve and filter to obtain a solution, and directly pass hydrochloric acid gas into the absolute ethanol solution of total alkaloids of Changshan for 4 hours to obtain a precipitate. The precipitate was recrystallized three times with absolute ethanol to obtain halosine hydrochloride. Detected by HPLC, its content ...

Embodiment 2

[0039] Embodiment 2 studies on the stability of halosine and halosine hydrochloride

[0040] The stability of halosine and halosine hydrochloride was determined by HPLC.

[0041] The chromatographic conditions are as follows: Agilent1200 high performance liquid chromatography; chromatographic column: YWG-C 18 (4.6mm×250mm, 10μm); mobile phase: acetonitrile-water-triethylamine-glacial acetic acid (9:91:0.35:0.75); detection wavelength: 225nm; column temperature: 30°C; flow rate: 1mL / min. Sample concentration: 1.0 mg / mL; injection volume: 10 μL.

[0042] Preparation of the reference substance solution: Precisely weigh the reference substance of Changshan alkali (references: Zhang Ya, Li Chun, Lei Guolian. Research on the chemical constituents of Changshan. Chinese Journal of Experimental Formulas, 2010,16(5):77-79. preparation) and the as-prepared hirshenine hydrochloride (put into a decompression desiccator to dry for 24 hours after the hirsutine hydrochloride is prepared) ea...

Embodiment 3

[0045] Example 3 Research on the Water Solubility of Hemosine and Hemosine Hydrochloride

[0046] Grind the hematine hydrochloride prepared above into a fine powder, accurately weigh 10 mg at room temperature, add 50 μL of deionized water, shake vigorously for 30 seconds every 5 minutes, and there will be no visible solute particles within 30 minutes , which is completely dissolved. According to the regulations on solubility in the 2015 edition of "Chinese Pharmacopoeia", hirsutine hydrochloride is easily soluble in water [easy soluble: means that 1 g (mL) of solute can be dissolved in 1 to less than 10 mL of solvent].

[0047] Grind firdosine into a fine powder, accurately weigh 10 mg at room temperature, gradually add deionized water, shake vigorously for 30 seconds every 5 minutes, until nearly 100 mL of water is added, firdosine is completely dissolved, so firdosine is in water The solubility is very slightly soluble [very slightly soluble: means that 1g of solute can be ...

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Abstract

The invention relates to orixine hydrochloride as well as a preparation method and medical application thereof. In particular, through pumping hydrochloric acid gas into an ethanol solution of radix dichroa total alkaloids, the orixine hydrochloride of which the stability and water solubility are both increased in comparison with orixine is obtained, the anti-malarial activity of the orixine hydrochloride is enhanced and the orixine hydrochloride can be used as novel anti-malarial drugs.

Description

technical field [0001] The present invention relates to stable halosine hydrochloride and its preparation method and application. Background technique [0002] At present, the epidemic situation of malaria in the world, especially in some underdeveloped areas, is still very serious. The emergence of multi-drug resistant strains is becoming more and more common, and there is an urgent need to develop new antimalarial drugs and new drug combinations. [0003] Malaria is a well-known protozoan disease and one of the most common infectious diseases in tropical and subtropical countries in Africa, Southeast Asia, and South America. Worldwide, 225 million people are infected with malaria every year, and 781,000 people die from malaria. In most malaria-endemic regions, the increasing prevalence of multidrug-resistant strains has greatly reduced the effectiveness of current antimalarial drugs in preventing and treating the disease. What is particularly worrying is that human falci...

Claims

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Application Information

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IPC IPC(8): A61K36/185A61K31/517A61P33/06A61P33/02A61P29/00A61P31/04A61P31/12A61P9/06A61P9/12C07D401/06
CPCA61K31/517A61K36/185A61K2236/333A61K2236/53C07D401/06Y02A50/30
Inventor 叶祖光李春李思迪梁爱华
Owner INST OF CHINESE MATERIA MEDICA CHINA ACAD OF CHINESE MEDICAL SCI
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