Class / Patent application number | Description | Number of patent applications / Date published |
536115000 | Esters | 38 |
20080269478 | Method for synthesizing sucrose-6-acetic ester - The present invention discloses a method of synthesizing sucrose-6-acetic ester, comprising the following steps: adding sucrose into a polar aprotic solvent, and stirring the solvent to dissolve it, then generate a suspension solution of sucrose; adding a acetylation agent acetylnitrile into said suspension solution and stirring the solution; adding water into the aforesaid reaction solution, and then concentrating it to generate a concentrated product; adding a crystalline solvent into the concentrated product, stirring to dissolve it, and depositing for crystallization, then filtering and drying it to get a product of sucrose-6-acetic ester. The benefit of the present invention is that the method of synthesizing sucrose-6-acetic ester has simple operation, mild reaction condition, high selectivity, high yield, and is suitable for industrial production. | 10-30-2008 |
20100160621 | SYNTHESIS OF ALKOXYLATED SUCROSE ESTERS - A process for the preparation of an alkoxylated sucrose ester including the steps of:
| 06-24-2010 |
20100222568 | Removal of pyridine and pyridine analogs from reaction mass containing sucrose esters - A process of removal of pyridine or a pyridine analogue from a composition or a Process Stream in a process of production of 4,1′, 6′ trichlorogalactosucrose is described comprising reacting pyridine with an acid, the said acid being used preferably in gaseous form, achieving complete precipitation of the salt of pyridine in higher alcoholic solvents and non-polar solvents, filtering off the precipitate of the said salt of pyridine to achieve removal of pyridine from the reaction system and optionally regenerating and recovering pyridine by reacting the said salt with alkali. | 09-02-2010 |
20130102773 | METHOD OF PREPARING SUCRALOSE-6-ESTER BY CATALYSIS AND CHLORINATION OF PHASE TRANSFER CATALYST - A method of preparing sucralose-6-ester by catalysis and chlorination of phase transfer catalyst comprises the following steps: add phase transfer catalyst into a prepared Vilsmeier reagent and then drip in DMF solution of sucrose-6-ester at 5-10° C. to obtain a feed solution and after that maintain its temperature of the feed solution for 1-1.5 hours; next, increase temperature of the feed solution to 45-55° C. and maintain the temperature for 1-1.5 hours; next, increase the temperature to 75-85° C. and maintain the temperature for 1-1.5 hours; next, increase the temperature to 108-109° C., maintain the temperature for 2.5-3 hours and then remove a chlorine-containing solvent from the feed solution by concentration in reduced pressure for evaporation. After that, cool down the feed solution to room temperature and then pump in ammonia into the feed solution for neutralization. | 04-25-2013 |
536116000 | Ether-esters | 1 |
20120296080 | GLUCOPYRANOSYL-SUBSTITUTED PHENYL DERIVATIVES, MEDICAMENTS CONTAINING SUCH COMPOUNDS, THEIR USE AND PROCESS FOR THEIR MANUFACTURE - Glucopyranosyl-substituted benzene derivatives of general formula I | 11-22-2012 |
536117000 | Phosphorus containing | 2 |
20100160622 | METHOD FOR CONTROLLING STREPTOCOCCUS PNEUMONIAE POLYSACCHARIDE MOLECULAR WEIGHT USING CARBON DIOXIDE - The present invention provides improved methods for producing a solution containing high molecular weight isolated | 06-24-2010 |
20150320857 | MODIFIED LIPOPOLYSACCHARIDE GLYCOFORM AND METHOD OF USE - The present disclosure generally relates to genetic engineering of bacteria. More particularly, the present disclosure describes genetic engineering of | 11-12-2015 |
536118000 | Sulfur containing | 8 |
20110087017 | PROCESS FOR THE PREPARATION OF COMPOUNDS USEFUL AS INHIBITORS OF SGLT2 - The present invention is directed to a novel process for the preparation of compounds having inhibitory activity against sodium-dependent glucose transporter (SGLT) being present in the intestine or kidney. | 04-14-2011 |
20120296081 | Carrageenan Based Antimicrobial Compositions - Disclosed are compositions for inhibiting transmission of a sexually transmitted infection that contain one or more carrageenans, including lambda carrageenan. Also disclosed are methods for making and using the compositions. | 11-22-2012 |
20120330003 | Carrageenan Modified By Ion-Exchange Process - A composition comprises an ion-exchanged carrageenan. The carrageenan may be a traditionally extracted or neutrally extracted iota or kappa carrageenan. The ion-exchanged carrageenan has reduced gelling cation contents, reduced gelling temperature, and reduced melting temperature, as compared to its non-ion-exchanged counterpart. The ion-exchanged carrageenan may be mixed with another carrageenan to form a carrageenan product having a unique gelling temperature and melting temperature. Also disclosed is a process for making an ion-exchanged carrageenan composition. | 12-27-2012 |
20120330004 | Carrageenan Modified By Ion-Exchange Process - A composition comprises an ion-exchanged carrageenan. The carrageenan may be a traditionally extracted or neutrally extracted iota or kappa carrageenan. The ion-exchanged carrageenan has reduced gelling cation contents, reduced gelling temperature, and reduced melting temperature, as compared to its non-ion-exchanged counterpart. The ion-exchanged carrageenan may be mixed with another carrageenan to form a carrageenan product having a unique gelling temperature and melting temperature. Also disclosed is a process for making an ion-exchanged carrageenan composition. | 12-27-2012 |
20140046052 | Therapeutic Sulfated Polysaccharides, Compositions Thereof, and Methods for Treating Patients - Disclosed are methods and compositions for the treatment of a variety of disorders in subjects by affecting the glycocalyx of a subject in need of such treatment. The methods comprise administering to a subject an effective amount of a sulfated polysaccharide (SP) or analogue thereof, the SP being a non-animal based (e.g., plant, or bacteria derived) sulfated polysaccharide. The SPs can be administered as single agents, or in combination with one another, or with other medications to promote efficacy. Pharmaceutical compositions and comestibles including such SPs are also described. | 02-13-2014 |
20140243517 | METHODS OF PRODUCING C-ARYL GLUCOSIDE SGLT2 INHIBITORS - Method for the production of C-aryl glucoside SGLT2 inhibitors useful for the treatment of diabetes and related diseases. and intermediates thereof. The C-aryl glucosides may be complexed with amino acid complex forming reagents. | 08-28-2014 |
20160002276 | METHOD FOR PRODUCING a-HALO-TETRAACYL-GLUCOSE - There is provided an efficient and excellent preparation method of an α-halo-tetraacyl-glucose which is suitable for industrial preparation, which comprises reacting D-glucose or lower alkyl D-glucoside with a reactive derivative of a carboxylic acid and a metal halide to prepare the α-halo-tetraacyl-glucose represented by the formula (III): | 01-07-2016 |
20160115092 | DEVICE AND METHOD FOR THE PRODUCTION OF RADIOCHEMICAL COMPOUNDS - The invention relates to a method for the preparation of radiochemical compounds using a device having at least a reaction module, a dosing module, and a storage module, wherein the reaction module has at least one reaction vessel having a closable opening through which substances needed for the preparation of a predetermined radiochemical compound can be introduced into the reaction vessel of the reaction module and through which the prepared radiochemical compound can be removed from the reaction vessel of the reaction module; the dosing module has at least one pipetting head which can be moved relative to the storage module and the reaction module and in x, y, and z directions and also has at least one dosing unit; and at least one reservoir for one of the substances needed for the preparation of the respective radiochemical compound is formed in the storage module. Substances needed for the preparation of the respective radiochemical compound are introduced into the reaction vessel of the reaction module by means of dosing units, wherein the dosing units can be moved via a pipetting head in x, y directions or in x, y, and z directions. | 04-28-2016 |
536119000 | Carboxylic | 23 |
20080319185 | Efficient Method To Synthesize Benzyl Group-Protected Alpha-Pentagalloylglucose (Alpha-Pgg) And Its Analogues - A method to synthesize benzyl group protected alpha-pentagalloylglucose (α-PGG) and related compounds. The method comprises the steps of: suspending a highly reactive acylation agent and an acylating catalyst in a donor solvent; adding α-D-glucose or an analogue thereof to the mixture; reacting the mixture at room temperature for a time sufficient for reaction to occur; evaporating the solvent; taking up the residue in an appropriate solvent; filtering the residue and solvent mixture; and evaporating off the solvent. | 12-25-2008 |
20090054640 | Device and Method for the Control of Chemical Processes - The present invention provides a method of controlling a chemical process, the method comprising the steps of: (i) providing a laminar flow of a first fluid, the first fluid providing a first reagent or one or more precursor thereof), a laminar flow of a second fluid, the second fluid providing a second reagent (or one or more precursor thereof) and a laminar flow of barrier fluid; and (ii) causing the first and barrier fluids to contact one another so that the barrier fluid forms a barrier between the first reagent (or one or more precursor thereof) and the second reagent (or one or more precursor thereof) wherein step (ii) comprises forming segments of first fluid encased or sandwiched by barrier fluid, the segments being surrounded by the second fluid, and the barrier fluid is permeable to one or both of the first and second reagents. Devices for performing the method of the present invention are also provided. | 02-26-2009 |
20090259033 | PROCESS FOR THE PRODUCTION OF ESTERS OF SUGARS AND SUGAR DERIVATIVES - A process for the production of an ester of a non-reducing sugar or sugar derivative comprises reacting the non-reducing sugar or sugar derivative with a triglyceride of a fatty acid or a fatty acid ester of a monohydric alcohol in air, substantially in the absence of a solvent and under heterogeneous reaction conditions in which the sucrose and alkyl ester or triglyceride are present as separate phases, at a temperature in the range of from 110° C. to 140° C., wherein the reaction is conducted in the presence of a potassium soap but in the absence of an alkaline component. The process enables esters of sugars and sugar derivatives to be produced at lower temperatures than hitherto and in a much simpler process. | 10-15-2009 |
20100228020 | Novel Chlorination Reagent and a Novel Process for Chlorination of Sugars Using Thionyl Chloride - Preparation of chlorinating reagent or chlorination reaction itself for use in a reaction such as production of high intensity sweetener trichlorogalactosucrose (TGS) from partially protected sucrose, comprising reaction of dimethylformamide (DMF) with thionyl chloride or another sulphur containing inorganic acid chlorides including sulphuryl chloride is faced with a problem of prolific release of gaseous by-products, that at times may lead to violent explosion also. This problem is solved by innovative addition of solid powder inert to the constituents of the chlorination reaction mixture to the reaction, or by adding DMF to acid chloride solution in that order. The invention also leads to use of isolated solid Vilsmeier reagent being used for chlorination in a solvent other than DMF making it possible to avoid altogether problems arising from use of DMF which include irrecoverable loss in alkaline as well as acid conditions, interference in crystallization of TGS and the like. | 09-09-2010 |
20110087018 | Low Temperature, Single Solvent Process for the Production of Sucrose-6-Ester - A method for the preparation of a sucrose-6-ester is disclosed. In a first step of the method, sucrose in a polar aprotic solvent is reacted with an organotin-based acylation promoter. The water of reaction is removed at a temperature that does not exceed about 80° C. In one aspect, the water is removed by distillation of part of the polar aprotic solvent at reduced pressure. In a second step, a carboxylic acid anhydride is added. In one aspect, the resulting reaction mixture is maintained at a temperature of 10° C. or less for a period of time sufficient to produce a sucrose-6-ester. The sucrose-6-ester can be converted to sucralose. | 04-14-2011 |
20110087019 | Process for the production of sucrose-6-ester - A process for the production of sucrose-6-ester is disclosed. The process includes, in order, the steps of:
| 04-14-2011 |
20110251383 | Process For Making Polyol Esters With Improved Colour And Odour Quality - Suggested is an improved process for making polyol esters with improved colour quality by transesterification of polyols or their alkoxylation products with fatty acid alkyl esters, which is characterised in that the reaction is carried out in the presence of a reducing mineral or organic acid as a catalyst selected from the group consisting of (i) sulphuric or sulphonic acids with an oxidation value of sulphur of less than 6 or their salts, and/or (ii) phosphoric or phosphonic acids with an oxidation value of phosphor of less than 5 or their salts. | 10-13-2011 |
20120289693 | Extraction of Carboxylic Acids with Tin Compounds - A method of removing a carboxylic acid from a liquid including a tertiary amide solvent includes:
| 11-15-2012 |
20120330005 | PEROXIDE REMOVAL FROM DRUG DELIVERY VEHICLE - The present invention is related to methods for lowering peroxide levels in sucrose acetate isobutyrate formulations and to composition used in and formed by such methods. | 12-27-2012 |
20130072674 | Novel Process for the Recovery of Beta Acetylfuranoside - There is provided an improved method for the recovery of residual, unseparated β-ACF from reaction mixtures remaining from an initial synthesis of ACF, which is in particular usable on a large industrial scale, more particularly in the production of capecitabine. | 03-21-2013 |
20130197213 | Low Temperature Chlorination of Carbohydrates - Disclosed is a method of chlorinating a carbohydrate or derivative thereof, for example, a sucrose-6-ester at the 4,1′, and 6′ positions, with irreversible removal of HCl formed during the reaction to form the chlorinated carbohydrate or derivative thereof, for example, a 4,1′,6′-trichloro-4,1′,6′-trideoxy-6-O-ester of galactosucrose (TGS-6E). The irreversible removal of HCl can be carried out by an irreversible physical process and/or an irreversible chemical process. Sucralose, an artificial sweetener, can be prepared by deesterification of the TGS-6E. The chlorination reaction takes place at low temperatures and the desired chlorinated product is obtained in high yields and in high purities. | 08-01-2013 |
20130245250 | METHOD FOR PRODUCING L-FUCOSE - Method for producing L-fucose includes in a first aspect, a method for the preparation of L-fucose, wherein L-fucose precursors are produced from pectin and L-fucose is produced from the L-fucose precursors; in a second aspect, a method for the preparation of L-fucose from D-galacturonic acid or a salt thereof, wherein L-fucose precursors are produced from D-galacturonic acid of a salt thereof, and L-fucose is produced from the L-fucose precursors; and an L-fucose precursor as shown in Formula A, wherein R is a linear or branched chain saturated hydrocarbon group with 1-6 carbon atoms, such as methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, t-butyl, n-hexyl, etc., preferably a methyl group. | 09-19-2013 |
20130324712 | SOLVENT-FREE MECHANOCHEMICAL PURIFICATION OF COMPOUNDS - Methods for purifying and extracting compounds from a mixture are provided using a solvent-free mechanochemical method. Methods for purifying and/or extracting sugars, amino acids, and, the like, from a mixture are also provided, using a solvent-free mechanochemical method. | 12-05-2013 |
20140142295 | Method for Producing Diester of Polyhydric Alcohol and Fatty Acid - A method for producing a diester of polyhydric alcohol and fatty acid, comprising a step of reacting a monoester of polyhydric alcohol and fatty acid in the presence of a catalyst containing a hydrotalcite compound to obtain a diester of polyhydric alcohol and fatty acid. | 05-22-2014 |
20140187766 | PREPARATION OF POLY ALPHA-1,3-GLUCAN ESTERS AND FILMS THEREFROM - Poly alpha-1,3-glucan ester compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ester compounds and films made therefrom. | 07-03-2014 |
20140187767 | PREPARATION OF POLY ALPHA-1,3-GLUCAN ESTERS AND FILMS MADE THEREFROM - Poly alpha-1,3-glucan ester compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ester compounds and films made therefrom. | 07-03-2014 |
20140221642 | LOW TEMPERATURE CHLORINATION OF CARBOHYDRATES - Disclosed is a method of chlorinating a carbohydrate or derivative thereof, for example, a sucrose-6-ester at the 4,1′, and 6′ positions, with irreversible removal of HCl formed during the reaction to form the chlorinated carbohydrate or derivative thereof, for example, a 4,1′,6′-trichloro-4,1′,6′-trideoxy-6-O-ester of galactosucrose (TGS-6E). The irreversible removal of HCl can be carried out by an irreversible physical process and/or an irreversible chemical process. Sucralose, an artificial sweetener, can be prepared by deesterification of the TGS-6E. The chlorination reaction takes place at low temperatures and the desired chlorinated product is obtained in high yields and in high purities. | 08-07-2014 |
20140235848 | METHOD FOR MAKING A PRECURSOR OF L-FUCOSE FROM D-GLUCOSE - A method that can be used to make a precursor of L-fucose from D-glucose that includes the steps of a) making a compound of formula (1) from D-glucose, formula (1) wherein R | 08-21-2014 |
20140323715 | PREPARATION OF POLY ALPHA-1,3-GLUCAN ESTERS AND FILMS THEREFROM - Poly alpha-1,3-glucan ester compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ester compounds and films made therefrom. | 10-30-2014 |
20150126730 | NOVEL COMPOSITION FOR PREPARING POLYSACCHARIDE FIBERS - Solutions formed by combining poly(α(1→3) glucan) with concentrated aqueous formic acid solution, optionally containing methylene chloride, have been shown to produce the formylated form of the poly(α(1→3) glucan). The solutions so formed have been shown to be useful for solution spinning into fiber of poly(α(1→3) glucan) when the spun fiber is coagulated into a coagulation bath. The fibers so produced exhibit desirable physical properties. The poly(α(1→3) glucan) employed was synthesized by the action of a recombinant enzyme prepared via fermentation. | 05-07-2015 |
20150299339 | BETA-1,3-GLUCAN DERIVATIVE AND METHOD FOR PRODUCING BETA-1,3-GLUCAN DERIVATIVE - An object of the present invention is to provide a β-1,3-glucan derivative which is a polymer having β-1,3-glucan as a main chain, and has thermoplasticity and excellent moldability, and a preparation method thereof. That is, the present invention provides a β-1,3-glucan derivative having a structure represented by General Formula (1) as a main chain. | 10-22-2015 |
20160002365 | METHOD FOR THE QUALIFICATION OF PREPARATIONS OF PENTOSAN POLYSULFATE, RAW MATERIALS AND PRODUCTION PROCESSES THEREOF - A method for the qualification and selection of manufacturing processes, raw materials, intermediates and batch production of pentosan polysulfate based on the identification of acetylated monosaccharide units, including units of xylose substituted with 4-O-methyl-glucuronic which also lead the acetyl group, as structural characterizing units, is disclosed. | 01-07-2016 |
20190144411 | Process for the preparation of (1S)-1,5-anhydro-1-C-[4-chloro-3-[(4-ethoxyphenyl) methyl]phenyl]-D-glucitol and its solvate thereof | 05-16-2019 |