130 results about "Huperzine A" patented technology

This invention relates to a novel transdermal drug delivery system whereby Huperzine A ("Hup A"), a naturally occurred Acetylcholine esterase inhibitor traditionally used to alleviate memory problem, is formulated for transdermal administration suitable for the treatment of Alzheimer's Disease ("AD") to increase the efficacy and convenience for outpatient care of AD patients. A controlled-release skin patch designed for once-a-week application of Hup A is provided for easy AD medication according to the invention.

A composition and a method for using the composition to delay the onset of the symptoms of Alzheimer's disease in humans, comprising curcumin, piperine, oleic acid, oleanolic acid, ursolic acid, galantamine, and huperzine A, among other compounds. Curcumin is an antioxidant, while galantamine and huperzine A inhibit the activity of acetylcholinesterase in the brain. Piperine and oleic acid increase the bioavailability and gastrointestinal absorption of curcumin, galantamine, huperzine A, and other nutrients.

The slow released Huperzine A pillet comprising one neutral core, one active layer containing Huperzine A and coating the core, and one slow releasing layer coating the active layer. It is prepared through a solvent dispersing process to coat the Huperzine A medicine onto the neutral core and subsequent coating the slow releasing layer. The present invention has raised medicine content homogeneity, ensures the stable, slow and complete release of the medicine, makes Huperzine A be absorbed in stomach, small intestine and colon to maintain the treating concentration of Huperzine A in blood and raises the compliance of the patient greatly.

A slowly releasing huperzine for treating sanile dementia by oral application features that its active components are huperzine A and its humolog, or their salts or ester derivatives. Its advantages are slow release (more than 12 hr), and high curative effect and safety.

Disclosed is an asymmetric total-synthesis method for chiral huperzine a. The method takes 1,4-dihydro-spiro (4,5) -8 -decanone as starting material to get benzoate through hydroxymethylation and the treatment of benzoyl chloride and K2CO3; the benzoate is reacted with hydrogen sulfate O-methyl iso urea to get quinazoline; after the ketal is eliminated, Mander reagent is used for methyl esterification reaction so as to obtain beta-keto ester. Chiral ammonia, such as cinchona alkaloid, is used to promote the tandem asymmetric Michael addition/aldol condensation reaction of beta-keto esters and methyl acrolein. The compound carboxylate of diastereoisomer is reacted with MsCl, triethylamine and DMAP to get transformed. Through TMSI and MeOH processing, the protective group is removed so as to obtain optically pure-chiral huperzine a.

The present invention discloses a kind of slow releasing enteric soluble coated tablet containing hyperzine A and its preparation process. Enteric soluble coating technology is adopted to overcome the bad effect of lower pH in stomach on the diffusion of medicine in skeleton tablet to ensure the stable, slow and complete release of medicine. The slow releasing tablet contains hyperzine A as reversible anticholinesterase and has one layer of enteric soluble polymer film coating outside the skeleton slow releasing layer. The active medicine component may be also various pharmaceutically acceptable acid salts of hyperzine A. Each tablet contains hyperzine A I n10-500 microgram and has sustained release time of 20 hr.

The invention relates to a preparation method of huperzine A, which is characterized by simple operation and little pollution and comprises the following processing steps: taking huperzine serrate dry coarse powder, adding 2-30 times amount of acid solution for ultrasonic extraction, with power of 100-2000W and extraction time of 10-30min, filtering extracts by anion exchange resins, extracting liquid medicines by chloroform, combining chloroform layers, recovering the chloroform at reduced pressure and concentrating the chloroform, adding the chloroform to a macroporous resin absorption column, using water for elution and impurity removal, using 50-90% of ethanol for elution, collecting eluent, recovering the ethanol at reduced pressure, adding acetone-chloroform for crystallization, washing and drying the crystal, thus obtaining the huperzine A. By adopting the invention to prepare the huperzine A, the product is high in purity and industrialization enlargement is easy to realize.

A process for extracting huperzine A from clubmoss herb, cryptomeria, or masson fir includes such steps as breaking, immersing in acid solution, concentrating, decoloring by activated carbon, regulating pH value, extracting by chloroform, vacuum recovering, volatilizing, eluting out, vacuum recovering, crystallizing and drying.

The invention relates to a method for purifying huperzine A, which is easy for industrialized production. The method comprises the following production steps of: crushing of raw materials, acid water heating and extraction, membrane filtration, impurity removal and condensation, aminated chloroform extraction and condensation, medium-pressure alumina column chromatography, chloroform methanol recrystallization, and drying of a finished product. The method for producing the huperzine A has low energy consumption and short period.

A dripping pill of huperzine A and its superfine pulverizing process for preparing it are disclosed. Its advantages are high dissolving and disintegrating speed, high stripping percentage, quickly taking its effect, stability and low cost.

The present invention discloses a reversible acetylcholinesterase inhibitor huperzine-A synthesis method, wherein the route is defined in the specification. The method of the present invention has advantages of easily-available raw materials, simple operation, high yield, low cost, high purity of the final product, easy quality control and the like, and is suitable for industrial production.

The invention discloses a beta-cyclodextrin inclusion compound of huperzine A, and a preparation method and preparations thereof. The beta-cyclodextrin inclusion compound of the huperzine A consists of 2.5 to 9.5 weight percent of huperzine A and 97.5 to 90.5 weight percent of beta-cyclodextrin. The preparation method comprises the following steps of: a) dissolving the huperzine A in an pharmaceutically acceptable organic solvent to prepare solution A, and heating and dissolving the beta-cyclodextrin in water to prepare solution B; and b) slowly adding the solution A into the solution B with stirring, and continuing to perform stirring until the mixed solution is uniform to prepare the beta-cyclodextrin inclusion compound of the huperzine A. The beta-cyclodextrin inclusion compound of the huperzine A further can be mixed with water-soluble carriers with viscosity, such as starch and the like, and then is pelletized, tabletted or filled into capsules with substrates. In the method, an extremely small amount of water-insoluble huperzine A is fully, effectively and uniformly dispersed, so the dissolution rate of the huperzine A is increased and the stability of the huperzine A is improved. The provided beta-cyclodextrin inclusion compound of the huperzine A can be used for preparing solid preparations and liquid preparations, operating steps are reduced and the production cost is remarkably reduced.

The invention relates to a compound of original gel atomizer of Huperzine nose, and relative preparation, wherein it is external liquid, which can be atomized into nose as gel state. The invention use Huperzine as active component, assisted with original gel agent, pH adjuster, water, etc. The invention can treat senile dementia, and improve memory level of children. The invention has simple application, while it can be atomized into nose. And its cerebrospinal fluid and jordonet snyder utilization is 2.2-2.7 times of oral agent, and its effect is 2-4 times of oral agent, with low toxic.

The invention provides intravenous injections of Huperzine and process for preparation, which include the dose forms of injections, fluid infusions and freeze dried injections.

The invention relates to a preparation method of (-)-huperzine A, which comprises the following steps: preparing (+)-huperzine A mixture obtained by chemical synthesis and chiral acid into huperzine A chiral acid salt under optimum conditions, recrystallizing the chiral acid salt with organic solvent, and carrying out alkali ionization to obtain optically pure (-)-huperzine A. The method is convenient to operate and suitable for industrial production; and the chemical purity and optical purity of the (-)-huperzine A obtained by the method are respectively greater than 99.5%, thereby satisfying the requirements for the purity of the active pharmaceutical ingredients in pharmaceutical industry.

The invention relates to a method for extracting and separating huperzine A from huperizia serrata. Aiming at the disadvantages of the existing method of lower yield, higher cost and weak market competitive power, the invention establishes the method for extracting and separating the huperzine A from the huperizia serrata, which comprises the following steps: grinding raw materials, extracting by 2% acetic acid, separating by SP825 micro-pore adsorption resin, column chromatographic separating by alumina B, preparative chromatography purifying by nitrile-group bonding silica gel, concentrating and drying, so as to obtain a finished product. The invention has the benefit that as the new extraction process is adopted, by simplifying operation, reducing loss, improving yield and lowering cost, the market competitive power of the product can be enhanced.

The invention relates to huperzine-A framework particles, orally disintegrating tablets and preparation methods thereof. The huperzine-A framework particles are prepared by an ultrafine particle preparation system (UPPS) and through taking huperzine-A, a framework material and an ethanol aqueous solution as raw materials, wherein the mass ratio of the huperzine-A to the framework material is (0.01 to 2): 100; the framework material is ethyecellulose or a mixture of ethyecellulose and an additive with a mass ratio of (2 to 40): 1; and the additive is selected from at least one of triethyl citrate, polyethylene glycol, hydroxypropyl methyl cellulose and povidone. The huperzine-A framework particles disclosed by the invention are high in medicine entrapment efficiency, high in formability and compact in structure, have obvious rough surfaces, and are high in mixing uniformity thereamong, high in compressibility and good in sustained-release effect. The orally disintegrating tablets disclosed by the invention are high in medicine uniformity, and keep the medicine release behaviour of the huperzine-A framework particles before tabletting.

This document provides dietary supplement compositions. For example, dietary supplement compositions having an acetylcholinesterase inhibitor (e.g., huperzine A), a Bacopa monnieri extract, acetyl-L-carnitine or acetyl CoA, and a curcuminoid (e.g., curcumin) are provided.

The invention discloses application and a preparation method of huperzine A gelatin nanoparticle loaded microspheres. According to drug release amount requirements of huperzine A and drug release characteristics of nanoparticles and microspheres, nanoparticles and microsphere preparations are combined so as to solve the problem of burst release of huperzine A sustained-release preparations, and sustained release is realized.

Sustained-release formulations comprising huperzine A are disclosed herein. The formulations are for oral administration, and contain a carrier which comprises native albumin. Unit dosage forms of the formulations, and kits comprising such unit dosage forms are also disclosed herein. Methods utilizing the formulations for treating a medical condition treatable by huperzine A are also disclosed herein, as well as processes for preparing the formulations, and uses of huperzine A and albumin in the manufacture of a medicament.