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612results about "Steroids preparation" patented technology
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Method for extracting squalene from vegetable oil deodorized distillate
InactiveCN101830770AIdeal yieldIncrease contentDistillation purification/separationExtraction purification/separationHigh concentrationVegetable oil
The invention relates to a method for extracting squalene from vegetable oil deodorized distillate. A process method of combining molecular distillation with extraction and crystallization is used to extract high-concentration squalene and recover natural vitamin E and phytosterol with a certain purity from vegetable oil deodorized distillate. The method comprises the following steps of: carryingout a saponification reaction of the raw material; twice molecularly distilling unsaponifiable matter obtained by extraction; using the distillate obtained during the second distilling as a raw material for cold crystallization to obtain phytosterol; recovering squalene and mixed tocopherol from the filtrate; and extracting with multi-stage solvents to respectively enrich squalene and vitamin E in two phases. The process has simple flows, low-prices raw material and higher separation efficiency and recovery rate and comprehensively utilizes useful contents in the deodorized distillate.
Owner:TIANJIN UNIV
High-Purity Mogrosides And Process For Their Purification
The present invention provides a process for preparation of highly purified mogrosides mixture from low purity mogrosides mixture. The process comprises providing a mixture of low purity mogrosides, dissolving the low purity mogrosides mixture in water or an aqueous alcohol solution to form an initial solution of mogrosides, passing the initial solution through a column system, wherein the column system comprises a plurality of columns, and each column is packed with a sorbent having different affinities to impurities and mogrosides so that one or more columns retains more mogrosides than other columns, washing the columns to remove impurities with an acidic aqueous solution, a basic aqueous solution, and an aqueous alcoholic solution successively, eluting the columns with an aqueous alcohol solution that contains higher alcohol content than the aqueous alcohol solution used in the washing step, wherein the eluate from the columns with high content of mogrosides are combined, and drying the combined eluate to obtain high purity mogrosides with the content of the total mogrosides are more than 70% (w / w). The present invention also provides a sweetener mixture and product comprising high purity mogrosides.
Owner:PURECIRCLE SDN BHD
Production process for extracting tea saponin from tea-oil tree cake by using water as dissoluent
InactiveCN1754883AAvoid hydrolysisEfficient removalSugar derivativesGlycosidesChemical treatmentCamellia oleifera
The preparation method to extract tea saponin from oil meal, which comprises smashing, removing enzyme, leaching with hot mixing to boost infiltration capacity, centrifugal solid-liquid separating to add flocculant, deposition separating, disc centrifugal separating for cleaning solution, prefiltration separating for flocculation deposition, nano-membrane concentrating, and spray drying. Wherein, using chemical treatment to inhibit and eliminate hydrolase activity before leaching. This invention is simple and low cost with yield more than 70% and 80% purity.
Owner:NANHUA UNIV
Preparation method of ulipristal acetate and key intermediate thereof
ActiveCN102516345AHigh puritySimple methodKetal steroidsSteroids preparationEthylenedioxyGrignard reagent
Owner:UTOPHARM SHANGHAI +1
Process of preparing ganoderma tricterpinyl acid and ganoderma polyose from ganoderma
The invention is a method of preparing glossy ganoderma triterpenic acid and amylase by glossy ganoderma, crushing the dry glossy ganoderma seeds (water content 5-8%) into particles; or cutting into slices, then putting raw material in a high-pressure extraction kettle, then injecting CO2 and polar agent in the extraction kettle by a supercritical CO2 high-pressure pump and a polar agent pump, respetively, where the extracting pressure of the high-pressure pump is 25-50 MPa, the injection quantity of the polar agent in bulk percent is 10-20%, the temperature is 35-80 deg.C, and the extracting time 2-4 hours, obtaining the extract of glossy ganoderma triterpenic acid; adding water by 8-16 times in the residues, heating to 80-100 deg.C, extracting for 1-2 hours, obtaining the extract of glossy ganoderma amylase. In the products prepared by this invention, the content of glossy ganoderma triterpenic acid is up to 60.2% (by HPLC detection); that of glossy ganoderma amylase 36% (by UV spectral detection).
Owner:北京云威科技有限公司
Production of multiple unsaturated fatty acid phytosterin ester
InactiveCN1982326AIncrease contentHigh reaction yieldSteroids preparationVegetable oilOrganic solvent
Production of unsaturated fatty acid plant sterol ester is carried out by alcoholysis reacting for glycerin trilaurate of vegetable oil under action of methanol and catalyst to obtain fatty acid methyl ester, ester exchange reacting for fatty acid methyl ester and plant sterol under action of catalyst, removing un-reacted methanol and fatty acid methyl ester to obtain crude unsaturated fatty acid plant sterol ester, de-coloring and deodorizing to obtain the refined final product. It's cheap, harmless and non-toxic and can be used in food-industry production.
Owner:ZHEJIANG MEDICINE CO LTD XINCHANG PHAMACEUTICAL FACTORY
Novel application of 7-keto-6[beta]-alkyl cholanic acid derivative in preparation of obeticholic acid and in field of medicine
ActiveCN105669811ADifficult to purifyHigh purityMetabolism disorderSilicon compound active ingredientsKetoneMedicinal chemistry
The invention provides a preparation method of a 7-keto-6[alpha]-alkyl cholanic acid derivative. According to the preparation method provided by the invention, a 7-keto-6[beta]-alkyl cholanic acid derivative, as shown by a formula II, is used as a raw material, and the 7-keto-6[alpha]-alkyl cholanic acid derivative is prepared by converting a 6[beta] configuration into a 6[alpha] configuration under an acid or alkali condition. The invention also provides a 7-keto-6[beta]-alkyl cholanic acid derivative and an application thereof in preparation of 3[alpha],7[alpha]-dihydroxy-6[alpha]-alkyl-5[beta]-cholanic acid. The preparation method provided by the invention is simple and convenient, and is high in configuration conversion rate, and the product, the 7-keto-6[alpha]-alkyl cholanic acid derivative, is easy to purify, so that the purification difficulty for preparing the 3[alpha],7[alpha]-dihydroxy-6[alpha]-alkyl-5[beta]-cholanic acid is reduced.
![Novel application of 7-keto-6[beta]-alkyl cholanic acid derivative in preparation of obeticholic acid and in field of medicine](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/56d80b07-fa92-4053-887a-acb6f82379a0/BDA0000609078430000011.PNG "Novel application of 7-keto-6[beta]-alkyl cholanic acid derivative in preparation of obeticholic acid and in field of medicine")
![Novel application of 7-keto-6[beta]-alkyl cholanic acid derivative in preparation of obeticholic acid and in field of medicine](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/56d80b07-fa92-4053-887a-acb6f82379a0/BDA0000609078430000021.PNG "Novel application of 7-keto-6[beta]-alkyl cholanic acid derivative in preparation of obeticholic acid and in field of medicine")
![Novel application of 7-keto-6[beta]-alkyl cholanic acid derivative in preparation of obeticholic acid and in field of medicine](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/56d80b07-fa92-4053-887a-acb6f82379a0/BDA0000609078430000022.PNG "Novel application of 7-keto-6[beta]-alkyl cholanic acid derivative in preparation of obeticholic acid and in field of medicine")
Owner:CHIA TAI TIANQING PHARMA GRP CO LTD
Novel glycyrrhetinic acid derivative, and preparation method and medicinal uses thereof
InactiveCN101775059AGood antitumor activityOrganic active ingredientsSteroids preparationNitrogen oxidesAcid derivative
The invention discloses a novel glycyrrhetinic acid derivative, and a preparation method and medicinal uses thereof. The glycyrrhetinic acid derivative is a compound prepared by coupling nitric oxide donor of furazan nitrogen oxides and glycyrrhetinic acid through ester bonds or amide bonds. As proved by pharmacological experiments, the glycyrrhetinic acid derivative has superior antitumor effectand can be used for the preparation of antitumor medicines.
Owner:CHINA PHARM UNIV
Compositions and methods for treating CNS disorders
InactiveUS20170233433A1Reduces avoids symptom causeGood curative effectOrganic active ingredientsNervous disorderDiseaseSedation
Described herein are neuroactive steroids of the Formula (I): or a pharmaceutically acceptable salt thereof; wherein, R1, R2a, R2b, R3 and A are as defined herein. Such compounds are envisioned, in certain embodiments, to behave as GABA modulators. The present invention also provides pharmaceutical compositions comprising a compound of the present invention and methods of use and treatment, e.g., such for inducing sedation and / or anesthesia.
Owner:SAGE THERAPEUTICS
Chemical synthesis method of methylprednisolone
InactiveCN101230084AHigh yieldThe yield is improved compared with the one-step methylation reaction yield of the prior artSteroids preparationChemical synthesisSynthesis methods
The invention discloses a chemical synthesis method of methylpredmisolone. Fungi oxide is adopted as the initial material and methylpredmisolone is obtained after prevotella oxidation, bromine application, bromine removal, 6-bit methylenation, 6-bit methylation, ketal protection, 11- bit reduction, ketal hydrolization, 1 and 2 bit dehydrogenation, 21-bit iodine application, 21-bit permutation and 21-bit hydrolytic reaction. The flow of the synthesis method of the invention is reasonable, the yield rate and the purity of the intermediate products are high, the reaction condition is temperate, the by-products in the end product are few, the purity is high (reaching above 98 percent), the industrialization is easy to be realized, thereby the method has high application value.
Owner:TAIZHOU TAIFA PHARMA
Pentacyclic triterpene and melbine salt of derivative thereof, preparation method and medical application of pentacyclic triterpene
The invention relates to field of natural medicine and medicinal chemistry, in particular to novel pentacyclic triterpene and melbine salt I of the derivative thereof. The salt compound can be used for preparing medicaments curing diabetes mellitus and complicating disease thereof, cerebral ischemia, angiocardiopathy, atherosclerosis, hepatitis, fatty liver and metabolic syndrome or tumour, descendens blood fat drugs and anti-obesity drugs. The invention also relates to the preparation method of the salt compound.
Owner:CHINA PHARM UNIV
Method of purifying and preparing momordica grosvenori alcohol
A purified preparation of Mangosteen alcohol, which includes steps: (1) first crush Mangosteen and add ethanol to get alcohol extract, (2) suspend the extract in water, extract by ethyl acetate, recover ethyl acetate to get ethyl acetate extract and take the mother liquor, (3) add HCL into the mother liquor and ethyl acetate for acid hydrolysis with heating, separate the layer of ethyl acetate after hydrolysis and adjust it neutral with lye, abstract ethyl acetate, decompress and recycle the solvent to get the extract containing Mangosteen alcohol, (4) conduct silica gel column chromatography, chloroform elution, and recovery, chloroform-methanol elution, collect the elutes, recycle the solvents to get the crude, (5) conduct re-crystallization on the crude to get Mangosteen alcohol with purity morn than 95%.
Owner:SHANGHAI JIAO TONG UNIV
Methods for the synthesis of ceragenins
Disclosed herein are methods of making ceragenin compounds for treating, preventing, or diagnosing diseases, disorders, or conditions associated with bacterial or viral infections, cancer, inflammation, and osteogenesis. Ceragenin compounds display broad spectrum antibacterial activity utilizing a mode of action similar to antimicrobial peptides, but without the high synthesis costs and susceptibility to proteolytic degradation. Ceragenin compounds reproduce the amphiphilic morphology found in many antimicrobial peptides and display potent and diverse biological activities, including anti-bacterial, anti-cancer, anti -inflammatory, bone growth promotion, and wound healing promotion.
Owner:BRIGHAM YOUNG UNIV
Novel technology for oxosynthesis of pregnane 11-bit ketonic group
The invention relates to a novel technology for oxosynthesis of pregnane 11-bit ketonic group, which is characterized in that a compound in a formula 2 uses piperidine nitroxide free-radical as an oxidation catalyst under the condition of an organic solvent, and uses positive valence halide as an oxidant to react to generate a compound in a formula 1.
Owner:TIANJIN JINYAO GRP
Method for preparing fatty acid phytosterol esters
The invention relates to a method for preparing fatty acid phytosterol esters, which comprises the following step of: esterifying fatty acid and phytosterol in the presence of one or more catalysts such as alumina, aluminum hydroxide, aluminum salt (such as aluminum chloride, aluminum sulfate, aluminum silicate and the like), oxide of other elements in IIIA family, phosphorus pentoxide, phosphoric acid, phosphate (such as sodium dihydrogen phosphate, dipotassium phosphate and the like), a molecular sieve and silica gel in effective catalysis amount. The invention also relates to the fatty acid phytosterol esters prepared by the method, and foods, soft capsules and cosmetics containing the phytosterol esters.
Owner:丰益生物科技(江苏)有限公司
Natural brassinolide analogue application
ActiveCN103214546AHigh activityImprove biological activityBiocidePlant growth regulatorsBiotechnologyBrassica
Owner:CHENGDU NEWSUN CROPSCI
Method for producing high-purity chenodeoxy cholic acid from poultry and livestock bile
InactiveCN1775798ASimple extraction processSimple production processAntiinfectivesSteroids preparationCholic acidBile Juice
The invention discloses a method to manufacturing high purity chemocholic acid from fowl bile that belongs to refinement chemical and medicine field. It includes the following steps: a. saponification reaction: mixing the fowl bile and sodium hydroxide and reacting for 20-30 hours under the certain temperature; b. neutral reaction: adding dilute hydrochloric acid after saponification reaction and gaining raw cholic acid after filtering; c. column chromatography: adding dilute sodium hydroxide into raw cholic acid and injecting into chromatography column, uniting the eluent; super filtering: taking super filtering by super filtering film; e. gaining chemocholic acid that the purity is over 96% after adding dilute acid, filtering and drying. The invention has simple technology, high purity, low cost and environment protection.
Owner:SHANDONG BOERDE BIOLOGICAL SCI & TECH
Processes and intermediates for preparing steric compounds
InactiveUS20070244334A1Organic compound preparationOrganic chemistry methodsBeta hydroxy acidStereochemistry
This invention relates to processes and intermediates for the preparation of an alpha-amino beta-hydroxy acid of Formula 1 wherein the variables R1, R′1 and R2 are defined herein and the compound of Formula 1 has an enantiomeric excess (ee) of 55% or greater.
Owner:VERTEX PHARMA INC
Method for synthesizing 2-cyano-3,12-dioxoolean-1, 9(11)-dien-28-oic acid methyl ester and derivatives thereof
ActiveUS20130303797A1Organic compound preparationCarboxylic acid esters preparationSumaresinolic acidUrsolic acid
The present invention is a method for preparing triterpenoids such as 2-cyano-3,12-dioxoolean-1,9-dien-28-methyl ester and derivatives thereof from oleanic acid, ursolic acid, betulinic acid, sumaresinolic acid or hederagenin.
Owner:TRUSTEES OF DARTMOUTH COLLEGE THE
Method for extracting natural phytosterin from residual oil of vegetable fat deodorizing distillate
InactiveCN101701029AEmission reductionTo satisfy the market's needsSteroids preparationChemistrySurface-active agents
The invention belongs to the biochemical industry field, particularly relates to a method for extracting natural phytosterin from residual oil of vegetable fat deodorizing distillate. The method comprises the steps of transforming the sterol ester and the glyceride in the residual oil into free sterol and aliphatic acid by catalyzing and decomposing and extracting natural phytosterin by cool resolving and filtering. The filtrate contains a large amount of aliphatic acid so the filtrate can be used to prepare surface active agent or biodiesel. The invention not only changes the discharged residual oil from waste residue into valuable but also solves the problem that China is lack of natural phytosterin resources, with excellent social benefit, environmental benefit and economic benefit. The invention has simple process, easy operation, excellent controllability, low manufacturing cost, industrialization and wide application prospect.
Owner:TIANJIN POLYTECHNIC UNIV
Method for extracting cholesterol from lanoline
This invention discloses a method for extracting high-purity cholesterol from lanolin. The method comprises: (1) dissociating cholesterol from lanolin by transesterification reaction; (2) performing short-path distillation to obtain cholesterol crude product; (3) purifying by silica gel column chromatography; (4) crystallizing to obtain refined cholesterol with purity higher than 95% and yield higher than 70%. The method has such advantages as high product consumption, little pollution, simple process and easy operation, thus is suitable for mass production.
Owner:ZHEJIANG UNIV
Novel technique for preparing tea saponin by solvent extraction and selectively separating integration
InactiveCN101177447AHigh purityReduce consumptionSteroids preparationHigh concentrationOrganic solvent
The invention relates to a novel process for preparing tea saponin, which integrates solvent extraction and selective separation. The steps are as follows: a. extraction and absorption: adding proper amount of the defatted cake of degreased oil-tea into a sorbitic extractor and adding macroporous absorption resin into the round bottom flask with low-concentration organic solvent, which is then heated up and back flowed; b. absorption stripping: addubg the macroporous absorption resin which has absorbed tea saponin into the solution of high-concentration organic solvent, which is heated up and back flowed in the round bottom flask to obtain the solution of tea saponin through filtering; c. obtaining the products of tea saponin by decoloring and spray drying the solution of tea saponin. The invention has the advantages that macroporous absorption resin is used to absorb tea saponin simultaneously while the tea saponin is extracted and solvent extraction and selective separation are integrated so that the manufacturing process is shortened, the energy consumption and production cost are reduced, the pollution during the process is decreased, the extracting solution is recycled and the consumption of organic solvent is reduced substantially, which can make full use of and fully develop the resource of defatted oil-tea cake.
Owner:NANCHANG HANGKONG UNIVERSITY
Steroid analogues for neuroprotection
ActiveUS20110263553A1Good water solubilityReduce usageBiocideOrganic active ingredientsSolubilitySterol
Provided are steroid analogues functionalized with polar substituents at the C3 and / or C20 positions of the steroid ring system that exhibit improved water solubility. Also provided are pharmaceutical compositions comprising the steroid analogues and methods using the novel steroid analogues for the treatment and prevention of neurodegeneration in a patient following injury to the central nervous system.
Owner:EMORY UNIVERSITY
Method for separating triptolide from thunder god vine leaves
The invention discloses a method for separating triptolide from thunder god vine leaves. Thunder god vine leave powders are extracted by ethanol, the ethanol is firstly distributed by an ethyl acetate-water system, the top phase is steamed to obtain ethyl acetate extractive matter, the extractive matter is then distributed by a sherwood oil- methanol system, and the bottom phase is steamed to obtain methanol extractive matter. The sampling amount of column chromatography step is reduced by the twice distribution. The eluent is steamed by simple column chromatography to obtain the crude product of triptolide, the crude product of triptolide is distributed by a quaternionic biphase system, impurities such as coloring matter, and the like are removed, the sampling amount of high-speed reverse-current coloring matter step is reduced, and the competitive product of triptolide is obtained by refining high-speed reverse-current coloring matter. The purity of the competitive product of triptolide is about 95%, and the yield is 0.008% higher than leaves. The solvent in the method does not contain chloro-solvent which is harmful to environment and human bodies.
Owner:ZHEJIANG UNIV
Method of separating soapnut saponin with foam separation method
InactiveCN101624416AHigh yieldSimple extraction processSteroids preparationFreeze-dryingFoam separation
The invention provides a method of separating soapnut saponin with the foam separation method, in particular a novel method of separating soapnut saponin from crude soapnut saponin extract with the foam separation method. The soapnut saponin with the high purity of 89-94 percent is obtained by the pretreatment, the foam separation, the vacuum concentration and the freeze drying of the crude soapnut saponin extract. Compared with the method of separating the soapnut saponin with resin, the invention simplifies the extracting process, lowers the power consumption, reduces the pollution and has wide application prospect.
Owner:RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
Waste-water-free production method for diosgenin
InactiveCN1850852ATo avoid the generationEasy to produceSteroids preparationActivated carbonWastewater
The invention relates to a non waste water producing method for yam saponin that includes the following steps: putting smashed raw materials into thermal decomposition device to take pressuring decomposing, controlling the temperature in 0-200degree centigrade and the pressure in 0.8-40MPa, and keeping for 5min-9h, drying the material and distilling in normal method. In the whole producing process, acid and alkali are not needed any more. It has no waste water, and has simple producing process, low cost, etc.
Owner:ZHENGZHOU UNIV
Composition for treating autonomic nerve disorder, preparation and uses thereof
ActiveCN101313908ALow costImprove controllabilityOrganic active ingredientsNervous disorderPrimary dysmenorrhoeaAdditive ingredient
The invention discloses a composition taking cycloartenyl ferulate and 24-methylene cycloartenyl ferulate as active ingredients, a preparation of the composition used as a medicine, and an application of the preparation. The total content of the cycloartenyl ferulate and the 24-methylene cycloartenyl ferulate is over 90 percent of the total active ingredients by weight percentage. As the medicine, the composition can be injection and frozen-dried powder injection and also can be an oral solid preparation, a medicine composition used for treating autonomic imbalance, climacteric syndrome, primary dysmenorrheal and premenstrual tension, periodic psychosis, vascular headache, head trauma syndrome, gastrointestinal imbalance and hyperlipemia, etc.
Owner:BEIJING CENTURY BIOCOM PHARMA TECH
Method for preparing phytosterol ester
InactiveCN101985460ASuitable for large-scale industrial productionLow costMolecular sieve catalystsSteroids preparationFood additivePhytosterol esters
The invention discloses a method for preparing phytosterol ester and belongs to the technical field of food, medicine, cosmetics and the like. The method comprises the following steps of: adding phytosterol and fatty acid into a three-neck flask provided with a reflux condensing device, adding a catalyst and a water-carrying agent, introducing nitrogen serving as shielding gas, and reacting at the temperature of between 80 and 120 DEG C for 8 to 72 hours to synthesize the high-purity phytosterol ester (the purity is over 90 percent). The synthesis process is simple and pollution-free, and equipment is not corroded, and after the reaction is completed, the catalyst is easy to separate and can be recycled repeatedly. A synthesized phytosterol ester product can be taken as a food additive, a functional food ingredient, a clinical medicament and a skin care product to be widely applied in the fields of food, medicine, cosmetics and the like.
Owner:JIANGNAN UNIV
Method for preparing asiatic centella total saponins by using macroporous adsorption resin
InactiveCN101200487ALarge adsorption capacityEasy to desorbSteroids preparationPlant ingredientsAbsorption capacityHigh absorption
The invention discloses a method for utilizing the macroporous adsorption resin to prepare the total saponins of the herba centellae. The operation procedures of the method is carried out as follows, 1) aqueous ethanol solution is added into the dry herba centellae for immersion and extraction, the extracting solution is mixed and removed ethanol by the vacuum concentraction, and the concentrated solution is diluted by water and filtered to obtain the aqueous total saponins of the herba centellae solution. 2), the pretreated macroporous adsorption resin is filled into the chromatography column. 3), the aqueous total saponins solution is introduced to flow through the resin column till penetration of the total saponins in the effluent. 4), the resin column is washed by water and eluted by the organic solvent-water mixture, the eluent is mixed after the thin layer chromatographic analysis, then is concentrated, crystallized and vacuum dried to obtain the total saponins product. 5), the resin column is washed and regenerated by the organic solvent-water mixture and water for reuse. The invention has the advantages of the higher absorption capacity of the total saponins of the herba centellae by the macroporous adsorption resin, easy desorption, higher recovery rate and higher contents of the total saponins of the herba centellae, simple method, strong operability, higher yield of the total saponins of the herba centellae and lower cost.
Owner:ZHEJIANG UNIV
Method for extracting phytosterol from waste residues generated in biodiesel production and product thereof
InactiveCN101942007AHigh economic feasibilityHigh crude extraction rateSteroids preparationPurification methodsBiodiesel
The invention discloses a method for extracting phytosterol from waste residues generated in biodiesel production, comprising the following steps of: converting phytosterol in a combined state into free phytosterol through deep saponification; extracting the phytosterol through an organic solvent to prepare mother liquor of crude sterine; recovering the solvent to obtain a crude sterine product, wherein the extraction rate of the crude sterine can reach 88.6 percent; recrystallizing the crude sterine product through absolute ethyl alcohol to obtain high-purity phytosterol, wherein the purity of the obtained phytosterol can reach 91.3 percent, and the prepared phytosterol contains campesterol, stigmasterol and sitosterol. The invention has simple extraction and purification method, changes the produced waste residues of biodiesel into valuables and has a good industrial application prospect.
Owner:领先生物农业股份有限公司
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