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58 results about "Clozapine" patented technology

This medication is used to treat certain mental/mood disorders (schizophrenia, schizoaffective disorders). Clozapine is a psychiatric medication (anti-psychotic type) that works by helping to restore the balance of certain natural substances (neurotransmitters) in the brain. Clozapine decreases hallucinations and helps prevent suicide in people who are likely to try to harm themselves.

Chemical heredity epilepsy persistent state disease animal model and construction method and application thereof

The invention provides a chemical heredity epilepsy persistent state disease animal model and a construction method and application thereof. The epilepsy persistent state disease animal model is a mouse brain kernel group (a hippocampus CA1 region and a thalamus anterior nucleus VA region of a model I); injecting a brain stereotaxic virus (a chemical genetic virus rAAV-CaMKIIa-hM3D (Gq)-mCherry-WPREs-pA) in an apricot kernel BLA region and a thalamus anterior nucleus VA region on the outer side of a substrate of the model II, and embedding an electrode array in a mouse hippocampus CA3 region;after the mouse is recovered for one week, a metabolite CNO of clozapine is injected into the abdominal cavity so that the CNO is combined with a virus expression receptor, neurons are activated to induce epileptic persistent state attack, and the epilepsy persistent state disease animal model is obtained through behavioral observation and in-vivo multichannel local field potential recording judgment. The epilepsy persistent state disease animal model constructed by the method is stable in seizure duration, high in success rate, low in death rate and good in repeatability, and has important significance in researching the origin and formation mechanism of epilepsy persistent state, and screening and mechanism of drug-resistant epilepsy persistent state drugs.
Owner:THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY

Key clozapine intermediate synthesis method

The invention discloses a key clozapine intermediate synthesis method and belongs to the field of drug synthesis. The key clozapine intermediate synthesis method comprises the steps that N-(2-halogenated-5-chlorphenyl) amino formic acid and aniline are used as starting raw materials, the aniline serves as a solvent, and 8-chlorine-5,10-dihydro-11H-dibenzo [b,e][1,4]-dinitrogen(shown in the description)-11-ketone is obtained through reaction under the effects of a catalyst and alkali. The key clozapine intermediate synthesis method has the positive and progressive advantages that the novel method for synthesis of the 8-chlorine-5,10-dihydro-11H-dibenzo [b,e][1,4]-dinitrogen(shown in the description)-11-ketone overcome lots of shortcomings in the prior art, adopts simple steps and only needs one-step reaction, the yield is up to 90% or above; the aniline is a reaction solvent and is also a raw material, can not only make reaction of the raw material (2-halogenated-3-pyridyl) carbamic acid complete, but also increase the yield of reaction, cost increase and environmental pollution brought by usage of other solvents are further avoided, the excessive aniline can be continuously used after being poste-treated and evaporated out, the cost is greatly saved, the environment is protected, and the key clozapine intermediate synthesis method has a good industrialized prospect.
Owner:CHANGZHOU UNIV

Clozapine tablet and preparation method thereof

The invention discloses a clozapine tablet and a preparation method thereof. The clozapine tablet is prepared from the main material ingredients in mass fraction: 25 parts of clozapine, 61.2 parts ofmicrocrystalline cellulose, 3.8 parts of lactose, the defined amount of povidone, 0.5 part of magnesium stearate, 1.4 parts of talcum powder and 0.4 part of silicon dioxide. The preparation method ofthe clozapine tablet comprises the following specific operation steps: step 1, sieving the clozapine by a 100-mesh sieve for standby application; step 2, weighing the clozapine, the microcrystalline cellulose and the lactose according to a formula in the claim 1 and jointly putting into a wet mixing granulator to be mixed evenly; step 3, weighing the defined amount of the povidone and adding waterto dissolve the povidone to be prepared into a water solution; step 4, adding the defined amount of binding agent into mixed powder in the last step to be prepared into an appropriate flexible material. According to the clozapine tablet disclosed by the invention, existing general auxiliary materials are utilized, and the problems that an existing formula has poor compressibility, tablet core hardness is poor, and the tablet split phenomenon happens in a conveying process are solved by optimizing the formula and a production technology.
Owner:南京双科医药开发有限公司
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