| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 562512000 |
Acyclic
| 866 |
| 562405000 |
Aromatic
| 337 |
| 562401000 |
Racemization or separation of optical isomers
| 18 |
| 562507000 |
Alicyclic acids having an element other than oxygen, carbon, or hydrogen
| 17 |
| 562498000 |
Plural alicyclic rings
| 16 |
| 562503000 |
Cyclopentyl (e.g., prostoglandins, etc.)
| 6 |
| 562506000 |
Cyclopropyl | 5 |
| 20090143614 | Process for the Preparation of Cilastatin and Sodium Salt - The present invention relates to an improved process for the preparation of Cilastatin Sodium of formula (I). The present invention also provides an isolation technique for Cilastatin acid from the reaction mixture. | 06-04-2009 |
| 20120078009 | PROCESS FOR THE PREPARATION OF CILASTATIN AND SODIUM SALT - An improved process for preparing Cilastatin Sodium including dissolving Cilastatin acid in a solvent using an organic base, adding sodium salt of a week acid and isolating Cilastatin Sodium. | 03-29-2012 |
| 20120172623 | PLANT GROWTH REGULATOR - Provided is a plant growth regulator having for an active ingredient thereof an α-ketol fatty acid derivative represented by the following general formula (1). | 07-05-2012 |
| 20120253066 | PROCESS FOR THE PREPARATION OF CILASTATIN SODIUM - The present invention relates to an improved process for the preparation of Cilastatin Sodium of formula (I), having mesityl oxide content less than 2000 ppm and more than 1 ppm. (Formula I) (I) | 10-04-2012 |
| 20140142337 | 1-AMINO-2-VINYLCYCLOPROPANE CARBOXYLIC ACID AMIDE AND SALT THEREOF, AND METHOD FOR PRODUCING SAME - The present invention relates to 1-amino-2-vinylcyclopropane carboxylic acid amide or a salt thereof. By obtaining optically active 1-amino-2-vinylcyclopropane carboxylic acid amide or a salt thereof by hydrolyzing optically active 1-amino-2-vinylcyclopropane carbonitrile or a salt thereof according to the production method of the present invention, 1-amino-2-vinylcyclopropane carboxylic acid amide or a salt thereof, which is useful as a pharmaceutical/agrochemical intermediate, can be easily obtained. The present invention is capable of providing a substrate to be subjected to optical resolution, which enables the production of optically active 1-amino-2-vinylcyclopropane carboxylic acid, which is widely used as a raw material for pharmaceutical and agrochemical products and is especially important as an intermediate for therapeutic agents for hepatitis C, inexpensively with high purity and high yield. | 05-22-2014 |
| 562508000 |
Alicyclic acids having an oxy, aldehyde, or ketone group | 4 |
| 20100298599 | PROCESSES FOR PRODUCING AND RECOVERING SHIKIMIC ACID - The present invention generally relates to processes for producing and recovering cyclitolcarboxylic acids such as shikimic acid and quinic acid. In particular, the present invention is directed to processes for producing shikimic acid that comprise contacting glyphosate and an organism that has the common aromatic biosynthetic pathway. The present invention is also directed to recovery of the shikimic acid product from aqueous process streams utilizing membrane separation techniques | 11-25-2010 |
| 20120095257 | ANTI-LEISHMANIAL COMPOUND AND ANTI-LEISHMANIAL DRUG - Provided is an anti-leishmanial compound represented by formula (3): | 04-19-2012 |
| 20130137895 | METHOD FOR THE EXTRACTION OF SHIKIMIC ACID - This invention is directed to the production of shikimic acid from | 05-30-2013 |
| 20130211136 | COMPOSITIONS COMPRISING SHIKIMIC ACID OBTAINED FROM OIL PALM BASED MATERIALS AND METHOD OF PRODUCING THEREOF - The present invention provides compositions and method for production of shikimic acid based on extracts obtained from oil palm-based materials, and more particularly oil palm based waste materials and by-products. The method includes purifying shikimic acid from extracts comprising oil palm phenolics (OPP). | 08-15-2013 |
| 562505000 |
Cyclobutyl | 3 |
| 20090198085 | Process for Production of Radioactive Fluorine-Labeled Organic Compound - A process is provided for producing [ | 08-06-2009 |
| 20130225861 | Boron Compound With Amino Acid Skeleton Containing Cyclo Ring - The purpose of the present invention is to provide a novel boron-containing compound utilizable in BNCT and so on and a process for preparing same. According to the process, a boron compounds having an amino acid skeleton containing cyclo-type rings or a pharmaceutically acceptable salt thereof is prepared, said boron compound being represented by general formula (I) [wherein l is an integer of 1 to 6; m is 0, 1, or 2; and n is 0, 1 or 2]. | 08-29-2013 |
| 20130274507 | PROCESS SIMPLIFICATION FOR PRECURSOR COMPOUND - The invention relates to a process for preparation of radiopharmaceutical precursors, and in particular protected amino acid derivatives which are used as precursors for production of radiolabelled amino acids for use in in vivo imaging procedures such as positron emission tomography (PET). Particularly, the invention relates to a process for preparation of a precursor useful in the preparation of the [ | 10-17-2013 |
| 562509000 |
Alicyclic polycarboxylic acids | 3 |
| 20100249452 | METHOD FOR THE OXIDATION OF CYCLOALIPHATIC ALCOHOLS, CYCLOALIPHATIC KETONES, OR MIXTURES THEREOF WITH AQUEOUS NITRIC ACID AND TREATMENT OF THE DICARBOXYLIC ACIDS - A process for preparing dicarboxylic acids by oxidizing cycloaliphatic alcohols, cycloaliphatic ketones or mixtures thereof with nitric acid, by performing the reaction and separation of the components in a fractionating column or rectification column. | 09-30-2010 |
| 20110196171 | PROCESS FOR PRODUCING HYDROGENATED AROMATIC POLYCARBOXYLIC ACID - A production method of a hydrogenated product of aromatic polycarboxylic acid by the hydrogenation of aromatic ring of the aromatic polycarboxylic acid in the presence of a catalyst composed of rhodium in combination with palladium and/or platinum supported on a carbon support. By using the catalyst, the hydrogenated product of aromatic polycarboxylic acid is produced industrially advantageously in high purity and high yield. By activating the catalyst composed of rhodium in combination with palladium and/or platinum supported on the carbon support after the hydrogenation, the conversion to the hydrogenated product of aromatic polycarboxylic acid is maintained at nearly 100% even after repeatedly using the catalyst many times. Also, a hydrogenated product of aromatic polycarboxylic acid substantially free from the starting aromatic polycarboxylic acid is obtained. | 08-11-2011 |
| 20140100387 | PROCESS FOR PREPARING CYCLOHEXANEPOLYCARBOXYLIC ACID DERIVATIVES HAVING A LOW PROPORTION OF BY-PRODUCTS - The present invention relates to a process for preparing at least one cyclohexanepolycarboxylic acid or a derivative thereof by bringing at least one corresponding benzenepolycarboxylic acid or a derivative thereof into contact with a hydrogen-comprising gas in the presence of at least one coated catalyst comprising an active metal selected from the group consisting of ruthenium, rhodium, palladium, platinum and mixes thereof, applied to a support material comprising silicon dioxide, where the pore volume of the support material is from 0.6 to 1.0 ml/g, determined by Hg porosimetry, the BET surface area is from 280 to 500 m | 04-10-2014 |
| 562510000 |
Alicyclic acids having unsaturation | 3 |
| 20080207946 | PROCESS FOR PREPARATION OF HIGHLY PURE ISOTRETINOIN - The present invention relates to a process for preparation of isotretinoin and more specifically, to a purification process for obtaining highly pure isotretinoin that is useful as a keratolytic agent, particularly useful for the treatment of acne. The process involves treating isotretinoin containing metal contamination and/or other impurities with a base in a suitable solvent to form a solution of isotretinoin, followed by adsorption, precipiation, and filtration or centrifugation | 08-28-2008 |
| 20100217037 | METHOD OF PRODUCTION OF 9-CIS-RETINOIC ACID - Improved method of production of 9-(Z)-retinoic acid, in which a) a β-formyl-crotonic acid C | 08-26-2010 |
| 20140221682 | SYNTHESIS AND BIOLOGICAL STUDIES OF AN ISOMERIC MIXTURE OF (E/Z) ISOXYLITONES AND ITS ANALOGUES - The invention relates to an anti-epileptic isoxylitone, 2,2′-(3,5,5-Trimethyl-2-cyclohexen-1-ylidene) acetic acid. | 08-07-2014 |
| 562403000 |
Hydrophenanthrene nucleus | 2 |
| 20110060160 | Process for preparing isopimaric acid - Disclosed is a process for preparing isopimaric acid, comprising the following steps: First step: dissolving thermally isomerized rosin in acetone, adding in drops a solution of isobutanolamine in acetone to form a precipitate, standing, filtering, washing with ethanol, and drying to obtain crude ammonium salt of isopimaric acid; recrystallizing the crude ammonium salt of isopimaric acid according to multi-recrystallization, and drying to obtain purified crystal of ammonium salt of isopimaric acid; Second step: dissolving the purified crystal of ammonium salt of isopimaric acid obtained in the first step in ether, adding hydrochloric acid in portions until the crystal of ammonium salt of isopimaric acid disappears, removing a water layer and washing the ether layer with water to neutral, evaporating the ether, dissolving the residue in acetone, adding water slowly into the solution dropwise until crystals cease to grow, then filtering and drying to obtain purified isopimaric acid. | 03-10-2011 |
| 20120296112 | Neuroprotective Compositions and Methods - Neurite outgrowth-promoting prostaglandins (NEPPs) and other electrophilic compounds bind to Keap1, a negative regulator of the transcription factor Nrf2, and prevent Keap1-mediated inactivation of Nrf2 and, thus, enhance Nrf2 translocation into the nucleus of neuronal cells. Therefore, neuroprotective compositions and related methods are provided that employ such neuroprotective compounds, and prodrugs of such compounds, to cause dissociation of Nrf2 from a Keap1/Nrf2 complex. | 11-22-2012 |
| 562511000 |
Naphthenic acids or salts thereof | 1 |
| 20100160680 | PROCESS FOR THE EXTRACTION OF HIGH MOLECULAR WEIGHT NAPHTHENIC ACIDS FROM CALCIUM NAPHTHENATE SALTS - A method for recovering high molecular weight naphthenic tetra-acids, particularly ARN acids from a calcium naphthenate deposit. Calcium naphthenate deposits contain large amounts of calcium naphthenate salts of ARN acids. The method dual solvent extraction process in which the naphthenic tetra-acids chemically bound as calcium naphthenate salts are converted into free acid monomers by an aqueous acid. The resulting free acid monomers are then dissolved into an organic solvent phase and the counterions dissolve in the aqueous acid phase. The naphthenic tetra-acids are then recovered from the organic solvent phase. | 06-24-2010 |
| Entries |
| Document | Title | Date |
|---|
| 20090216044 | METHOD FOR SYNTHESIS OF KETO ACIDS OR AMINO ACIDS BY HYDRATION OF ACETYLENE COMPOUND - An object of the present invention is to provide a method for synthesis of keto acids by hydration of an acetylene compound (acetylene-carboxylic acids) under mild conditions free from harmful mercury catalysts and a method for synthesis of amino acids from acetylene-carboxylic acids in a single container (one-pot or tandem synthesis). In one embodiment of the method according to the present invention for synthesis of keto acids, acetylene-carboxylic acids is hydrated in the presence of a metal salt represented by General Formula (1), | 08-27-2009 |
| 20090221847 | METHOD FOR PRODUCING UNSATURATED ALDEHYDE AND UNSATURATED CARBOXYLIC ACID - Disclosed is a method of a gas-phase catalytic oxidation reaction of propylene, isobutylene, or tertiary butanol with molecular oxygen in the presence of a catalyst to produce a corresponding unsaturated aldehyde and a corresponding unsaturated carboxylic acid, in which the catalyst can be used over a long period of time. Concretely, in the presence of the catalyst containing a complex oxide including molybdenum, bismuth and iron as essential components, at least one factor of a reaction pressure and a molar ratio of molecular oxygen to a raw material is controlled to change in such a way that a rate of reaction of the raw material is kept constant in the temperature range of from (TA-15)° C. to TA° C., when a boundary temperature of the activation energy of the catalyst is set to be TA° C. | 09-03-2009 |
| 20100094045 | METHOD FOR PRODUCING AT LEAST ONE OF ALPHA, BETA-UNSATURATED ALDEHYDE AND ALPHA, BETA-UNSATURATED CARBOXYLIC ACID - Disclosed is a method for producing at least one of an α,β-unsaturated aldehyde and an α,β-unsaturated carboxylic acid from an alcohol in a liquid phase through a simple process. Namely, at least one of an α,β-unsaturated aldehyde and an α,β-unsaturated carboxylic acid is produced by dehydrating and oxidizing an alcohol in a liquid phase at 110 to 250° C. in the presence of molecular oxygen and a noble metal-containing catalyst. Alternatively, at least one of an α,β-unsaturated aldehyde and an α,β-unsaturated carboxylic acid is produced by dehydrating and oxidizing an alcohol in a liquid phase in the presence of molecular oxygen, a noble metal-containing catalyst, and an acidic substance. | 04-15-2010 |
| 20100152485 | SYSTEM AND METHOD FOR CONVERTING BIOMASS - In accordance with the teachings of the present invention, a system and method converting biomass into useful chemicals are provided. In a particular embodiment, the method includes fermenting biomass in one or more fermentors to produce a fermentation broth comprising ammonium carboxylate salts, the fermentors containing an ammonium carbonate or ammonium bicarbonate buffer. The method further includes reacting the ammonium carboxylate salts from the fermentors with a high-molecular-weight amine to produce amine carboxylate salt, and thermally cracking the amine carboxylate salt to produce carboxylic acid. In another embodiment, the ammonium carboxylate salts from the fermentors may be reacted with a low-molecular-weight amine to produce a low-molecular-weight-amine carboxylate salt. The low-molecular-weight amine in the low-molecular-weight-amine carboxylate salt may then be switched with a high-molecular-weight amine to form a high-molecular-weight-amine carboxylate salt, which is then thermally cracked to produce carboxylic acid. | 06-17-2010 |
| 20110034725 | PROCESS FOR SEPARATING STEROLS AND ACIDS FROM TALL OIL PITCH - The invention relates to a process for recovering sterols and fatty and/or resin acids from tall oil pitch, comprising the steps of:
| 02-10-2011 |
| 20110144382 | ADVANCED CATALYSTS FOR FINE CHEMICAL AND PHARMACEUTICAL APPLICATIONS - A catalyst comprising a plurality of support nanoparticles and a plurality of catalytic nanoparticles. At least one catalytic nanoparticle is bonded to each support nanoparticle. The catalytic particles have a size and a concentration, wherein a first configuration of the size and the concentration of the catalytic nanoparticles enables a first catalysis result and a second configuration of the size and the concentration of the catalytic nanoparticles enables a second catalysis result, with the first and second configurations having a different size or concentration, and the first and second catalysis results being different. In some embodiments, the first catalysis result is a selective reduction of a first selected functional group without reducing one or more other functional groups, and the second catalysis result is a selective reduction of a second selected functional group without reducing one or more other functional groups. | 06-16-2011 |
| 20110160482 | CATALYSTS FOR HYDRODEOXYGENATION OF POLYOLS - Disclosed are methods for producing polyols, ketones, carboxylic acids, aldehydes and alcohols from biomass-derived oxygenated hydrocarbons, such as sugars, sugar alcohols, saccharides and the like, using catalysts containing platinum, ruthenium and tin. The methods can be run at lower temperatures and pressures, and allows for the production of oxygenated compounds without the need for hydrogen from an external source. The oxygenated compounds produced are useful as industrial chemicals or chemical intermediates for liquid fuels production. | 06-30-2011 |
| 20120283469 | INTERCONVERSION BETWEEN ISOMERIC P-MENTHANE-3-CARBOXYLIC ACIDS - A process for interconversion between WS-1 and neo-WS-1 by heating to a temperature in a range of from 60 degrees Celsius to 250 degrees Celsius. The heating can be done in the presence of an acid catalyst. Starting from practically pure (=98%) WS-1, or mixtures of WS-1 and neo-WS-1, practically pure (=98%) neo-WS-1 can be obtained. Starting from practically pure (=98%) neo-WS-1, or mixtures of WS-1 and neo-WS-1, practically pure (=98%) WS-1 can be obtained. | 11-08-2012 |
| 20120289740 | Catalyst, Method for Manufacturing the Same by Supercritical Fluid and Method for Hydrogenating an Aromatic Compound by Using the Same - Disclosed herein is a method for manufacturing a catalyst. The catalyst includes a mesoporous support and a plurality of metal nanoparticles dispersed and positioned in the mesopores of the mesoporous support. The method comprises the steps of: (a1)) allowing an organometallic precursor to be in contact with a mesoporous support, in which the organometallic precursor includes at least one material selected from the group consisting of ruthenium-containing compound, rhodium-containing compound and palladium-containing compound; and (a2) reducing the organometallic precursor in the presence of a supercritical fluid with a reductant, so that the organometallic precursor is reduced to the metal nanoparticles. | 11-15-2012 |
| 20130018205 | PROCESS FOR PREPARING CYCLOHEPTENE - The present invention provides a process for preparing cycloheptene and derivatives thereof by ring-closing metathesis of unsymmetric 1,8-dienes whose C—C double bond at the 8 position is nonterminal. Cycloheptene and the cycloheptanone, cycloheptylamine, cycloheptanecarbaldehyde, cycloheptanecarboxylic acid and cycloheptanecarbonyl chloride conversion products thereof, and the derivatives thereof, are important synthesis units for active ingredient compounds. The ring-closing metathesis is preferably performed as a reactive distillation. The unsymmetric 1,8-dienes for the ring-closing metathesis can be obtained by catalytic decarbonylation or oxidative decarboxylation from the corresponding unsaturated carboxylic acids or carboxylic acid derivatives. | 01-17-2013 |
| 20130289302 | METHODS AND SYSTEMS FOR GENERATING POLYOLS - Disclosed are methods for generating propylene glycol, ethylene glycol and other polyols, diols, ketones, aldehydes, carboxylic acids and alcohols from biomass using hydrogen produced from the biomass. The methods involve reacting a portion of an aqueous stream of a biomass feedstock solution over a catalyst under aqueous phase reforming conditions to produce hydrogen, and then reacting the hydrogen and the aqueous feedstock solution over a catalyst to produce propylene glycol, ethylene glycol and the other polyols, diols, ketones, aldehydes, carboxylic acids and alcohols. The disclosed methods can be run at lower temperatures and pressures, and allows for the production of oxygenated hydrocarbons without the need for hydrogen from an external source. | 10-31-2013 |
