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247 results about "Phthalide" patented technology

Phthalide is an organic chemical compound with the molecular formula C₈H₆O₂. It is a lactone that serves as the core chemical structure for a variety of more complex chemical compounds including dyes (such as phenolphthalein), fungicides (such as tetrachlorophthalide, often referred to simply as "phthalide"), and natural oils (such as butylphthalide).

Method for preparing bactericidal agent intermediate (E)-2-(2'-chloromethyl)phenyl-2-methoxy imino methyl acetate

The preparation method of the fungicide intermediate (E)-2-(2'-chloromethyl)-2-methicillin imino acetic methyl ester is: 1) the phenyl phthalate and the thionyl dihalide react with the influence of a catalyst; the catalyst is the Louis acid and phosphonic derivative; 2) the product of the first step and the alkali metal cyanide react with the influence of the organic solvent and phase transfer catalyst; the organic solvent is selected from the non-polar aromatic solvent or the halogen hydrocarbon; the phase transfer catalyst is selected from the halide of the four-level nitride or the ammonium salt; the alkali metal cyanide is selected from the sodium cyanide and potassium cyanide; 3) the products of the second step and the methanol react under the condition with the organic solvent and the chlorinated hydrogen; 4) the products of the third step and the methicillin amine hydrochloride under the condition with the organic solvent; thus, the target product can be got. The energy consumption and production risk of the present invention are obviously lowered; the relative collection rate is high; the safety in the production process is improved; and the present invention has no drawbacks such as the obstruction.
Owner:JIANGSU GENGYUN CHEM CO LTD

Butylbenzene phthalein tablet and preparation method thereof

The invention relates to a butyl phthalide tablet and a preparation method thereof. The butyl phthalide tablet is composed of butyl phthalide solid powders and other medical troche auxiliary materials; wherein, the butyl phthalide solid powders are composed of the components with the following weight percentage: 9 percent to 30 percent of butyl phthalide, 0.01 percent to 1.2 percent of emulsifiers and 70 percent to 90 percent of cyclodextrin or cyclodextrin ramification. The troche which is made with the invention has favorable forming, stable product quality and high dissolution rate.
Owner:CSPC ZHONGQI PHARM TECH (SHIJIAZHUANG) CO LTD +1

Method for preparing phthalide by benzoic anhydride liquid phase hydrogenation with gold-base catalyst

The invention discloses a method for preparing phthalide through phthalic anhydride liquid phase hydrogenation under the action of au-base catalyst. The gold-base catalyst used in the preparation method takes SiO2, ZnO, La2O3, CeO2, TiO2, ZrO2 or Fe2O3 as a carrier and takes gold as an active component, and the loading of gold is between 0.05 and 20 percent. As the gold-base catalyst used in the preparation method has excellent hydrogenation activity and selectivity under mild catalytic reaction conditions, the conversion rate of phthalic anhydride can be more than 95 percent, and the selectivity of phthalide can be more than 93 percent, thereby the single pass yield of the target product phthalide is high. Moreover, the gold-base catalyst is very good in performance stability, and more particularly, the gold-base catalyst after metal oxide modification can still maintain the selectivity over 92 percent even through the activity of the gold-base catalyst declines slightly after repeated recycling use. In addition, the gold-base catalyst provided is simple to prepare and does not pollute the environment. Therefore, the preparation method has significant advantages.
Owner:ZHEJIANG UNIV OF TECH

Composition for inhibiting nitric oxide and/or prostaglandin E2 synthesis and method for inhibiting inflammation

InactiveUS20080268078A1Reduce and relieve syndromeBiocideHydroxy compound active ingredientsNitric oxideProstaglandin E
A method for inhibiting nitric oxide and / or prostaglandin E2 synthesis. The method comprises administering a composition to a subject, wherein the composition comprises an effective amount of butylidene phthalide, citronellol, geraniol or combinations thereof, which can be used to reduce or relieve the syndromes of the inflammation.
Owner:YANGSEN BIOTECH

Hemlock parsley phthalide type ingredient effective part as well as preparation method and application of hemlock parsley phthalide type ingredient effective part

The invention discloses a phthalide type ingredient effective part as well as a preparation method and an application of the phthalide type ingredient effective part and belongs to the technical field of traditional Chinese medicine and natural product extraction and application. The preparation method of the phthalide type ingredient effective part comprises the following steps that hemlock parsley medicinal materials are extracted by an ultrasonic extraction method, a solvent extraction method, a microwave extraction method, a solvent backflow extraction method or a supercritical fluid extraction method, extracts are added with water to be dispersed and are then respectively extracted by two different-polarity solvents, extraction liquid is purified by positive-phase silica gel, the content of the phthalide type ingredient effective part accounts for more than 50 percent of the total weight of the extracts, and in addition, different solid phase extraction operation modes can be adopted according to different ingredient requirements. The phthalide type ingredient effective part, the preparation method and the application have the advantages that the preparation speed is fast, the phthalide type ingredient content in the product is high, the ingredient is definite, the quality is controllable, and good economic benefits and social benefits are realized.
Owner:TIANJIN UNIV

Butylphthalide medicine active composition and preparation method of butylphthalide medicine active composition

The invention provides a butylphthalide medicine active composition, which comprises the following ingredients: first ingredients: the butylphthalide content is higher than or equal to 98.0 percent; second ingredients: the second ingredients are one kind of materials or several kinds of materials selected from methylene phthalide, ethylene phthalide, propylene phthalide, butane phthalide, amylene phthalide, phthalide, methyl phthalide, ethyl phthalide, propyl phthalide and amyl phthalide, in addition, the content of the second ingredients is higher than 0 but is lower than or equal to 2.0 percent, when the second ingredients comprise any one kind of materials from methylene phthalide, ethylene phthalide, propylene phthalide, butane phthalide and amylene phthalide, the content of any one kind of included ingredients does not exceed 0.5 percent, and when the second ingredients comprise any one kind of materials from phthalide, methyl phthalide, ethyl phthalide, propyl phthalide and amyl phthalide, the content of any one kind of included ingredients does not exceed 1.0 percent. The quality of the medicine active composition is stable, and the clinic curative effect and the medication safety of the butylphthalide preparation can be ensured.
Owner:CSPC ZHONGQI PHARM TECH (SHIJIAZHUANG) CO LTD +1

Emulsion medicine containing n-NBP for injection and its preparation method

The invention relates to a medicament for injection containing n-butylphthalide and its preparing process, wherein the constituents include (by weight parts) n-butylphthalide, oil, surface active agent, isotonic agent and water by the proportion of 1:1-100:1-50:1-20:50-70. The preparing process comprises charging the isotonic agent and water soluble surface active agent into water, thus obtaining aqueous phase mixture, then charging n-butylphthalide, surface active agent and stabilizing agent into oil, heating to 60-90 deg. C, high speed stirring and emulsifying.
Owner:高春平

Application of phthalide compound

An application of a phthalide compound in preparing a medicament. The medicament is specially used for promoting a stem cell to secrete one of the following items: telomerase, a neurotrophic factor (brain-derived neurotrophic factor, BDNF), a stem cell chemotactic factor (stromal cell-derived factor-1, SDF1), a stem cell chemotactic factor receptor (CXC chemokine receptor 4, CXCR4), and an immunoregulatory factor; a kit comprising a phthalide compound and a stem cell is also provided.
Owner:HAWKING BIOLOGICAL TECH

Preparation method of 2-carboxybenzaldehyde

This invention discloses a preparation method of 2-carboxybenzaldehyde. In the method, phthalide dissolved in chlorobenzene or toluene solvent is first used to react with bromine to obtain 3-bromo phthalide, and then the 3-bromo phthalide is hydrolyzed to obtain wet 2-carboxybenzaldehyde, at last the wet 2-carboxybenzaldehyde is refined by recrystal to obtain the 2-carboxybenzaldehyde. In the method of invention, the mol ratio of phthalide to bromine to chlorobenzene or toluene and to water is 1: 1-3: 0.5-2: 1-20. The preparation method of 2-carboxybenzaldehyde has the advantages of low cost,simple steps, good controlability of each step, high yield and high purity of products, and is conducive to the expanding production and realizing industrialization.
Owner:TAICANG YUNTONG BIOCHEM ENG

Composition for the prevention or treatment of diseases associated with angiogenesis

The present invention relates to a composition for the prevention or treatment of diseases associated with angiogenesis, and in detail, to a composition comprising the extract of Cnidium officinale Makino or the fraction thereof for the prevention or treatment of diseases associated with angiogenesis. The present invention also provides 3-butyl-7-hydroxyphthalide, vanillin, coniferyl ferulate, and falcarindiol as active compounds. The composition of the present invention inhibits angiogenesis, so that it can be applied to the prevention or treatment of diseases related to angiogenesis, such as arthritis, diabetic retinopathy, psoriasis, and cancer.
Owner:ANGIOLAB

Compound air cleaning agent and preparing method and application thereof

The invention provides a compound air cleaning agent and a preparing method and application thereof. The compound air cleaning agent is formed by compounding multiple components of thyme essential oil, tea tree essential oil, castanea mollissima flower extracting solution, peony root and skin extracting solution, vine tea extracting solution, gardenia essential oil, osmanthus fragrans essential oil, costustoot essential oil, may lily of the valley alcohol, nerol, citric acid, 2-isopentyloxy allyl acetate, alcohol, assistant, 4-hydroxy-3-butylphthalide and deionized water. The air cleaning agent has the advantages of better sterilizing, mosquito repelling and aroma enhancing performances due to proper selecting of component and proportion and the coordinated action among the components, less using amount, long time effectiveness, and is more saved and fast in the aspect of life and use of people.
Owner:清远市立道精细化工有限公司
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