| Patents for C07J 53 - Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by condensation with carbocyclic rings or by formation of an additional ring by means of a direct link between two ring carbon atoms (1,809) |
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| 09/15/2011 | US20110224183 16, 17-carbocyclic condensed steroid compounds having slective estrogenic activity |
| 09/15/2011 | US20110224182 Salts of (3-0-(3',3'-dimethylsuccinyl) betulinic acid and solid state forms thereof |
| 09/14/2011 | CN102180933A Preparation method of skunk bugbane monomer components |
| 09/07/2011 | EP2363121A1 Pharmaceutical formulation for administration by inhalation comprising an androstane derivative and a beta-2-adrenoreceptor agonist for the treatment of inflammatory and allergic conditions |
| 08/31/2011 | EP1828222B9 Process for the preparation of drospirenone |
| 08/31/2011 | CN101376669B Preparation of 6-O-beta-D- glucosyl-3,6,16,25-tetrahydroxy cycloartane |
| 08/18/2011 | CA2789195A1 Derivatives of betulin |
| 08/03/2011 | CN1859917B Medicine and food/beverage for ameliorating hyperglycemia |
| 07/20/2011 | CN101456891B Method for extracting oryzanol from rice bran oil soapstock |
| 07/14/2011 | DE102010004452A1 Preparing drospirenone comprises reacting methyleneprasterone with strong base and with lithium and bromopropyl-trimethylsilylether, removing trimethylsilyl-protecting group and oxidatively cyclizing methylene-hydroxy-(propanol)-prasterone |
| 07/14/2011 | DE102010004450A1 Making drospirenone, useful as hormonal contraceptive, comprises reacting methylenedienedione with strong base and bromopropyl-trimethylsilylether, removing trimethylsilyl group and cyclizing methylene-hydroxy-(propanol)-androst-dien-one |
| 07/06/2011 | EP2340257A1 Bidesmosidic betulin and betulinic acid derivatives and uses thereof as antitumor agents |
| 06/30/2011 | US20110160167 Steroid Derivatives Acting As Glucocorticosteroid Receptor Agonists |
| 06/30/2011 | DE102009038972A1 Producing drospirenone, useful as hormonal contraceptives, by oxidatively converting hydroxy-dimethylenandrostane-one to hydroxy-dimethylenandrostan-dione, eliminating hydroxy group, followed by reacting with 1-halopropan-3-oxy |
| 06/23/2011 | US20110152229 Betulinic acid derivatives as anti-hiv agents |
| 06/22/2011 | CN102101880A Preparation method and application of radix astragali saponin |
| 06/16/2011 | US20110144363 Process for obtaining 17-spirolactones in steriods |
| 06/16/2011 | US20110144071 Crystalline active ingredient microparticles, method for producing the same and use thereof in drugs |
| 06/16/2011 | US20110144069 Compounds for treating viral infections |
| 06/15/2011 | CN102093456A Method for extracting astragaloside IV from astragalus |
| 06/15/2011 | CN101220036B Extraction of active ingredient such as betulinic acid from common camptotheca fruit with clean method |
| 06/14/2011 | US7960368 Bismethylene-17A carbolactones and related uses |
| 06/08/2011 | CN102086224A Preparation method of Abrusoside D |
| 06/08/2011 | CN101343306B Method for synthesis of 6,7-methylene sterides |
| 05/31/2011 | US7951965 Having semiconductor properties of electron transfer, electroluminescence, and photoluminescence. Intermolecular stacking can be avoided, enhanced electron-luminescent emission stability, applied as a light-emitting material in organic EL devices |
| 05/26/2011 | WO2011060634A1 23-hydroxy-betulinic acid derivatives, preparation methods and uses thereof |
| 05/04/2011 | CN102046646A C-ring-substituted pregn-4-ene-21,17-carbolactone, and pharmaceutical preparations comprising the latter |
| 05/04/2011 | CN102040666A Method for separating astragalus polysaccharide and astragalin astragaloside by ultrasonic film chromatography |
| 05/04/2011 | CN102040650A Method for constructing sterides-6beta, 7beta-methylene structure by cascade reaction |
| 04/27/2011 | CN102030800A Abies holophylla triterpenoid compound, extraction separation thereof and application thereof |
| 04/27/2011 | CN102030799A Cycloastragenol-6-O-beta-D glucoside monohydrate and crystal thereof |
| 04/26/2011 | CA2623639C Agent for improving insulin resistance |
| 04/05/2011 | CA2330916C Triterpene compositions and methods for use thereof |
| 03/31/2011 | US20110077228 Novel c-21-keto lupane derivatives preparation and use thereof |
| 03/31/2011 | US20110077227 Novel lupane derivatives |
| 03/30/2011 | CN101061132B Method for preparing 17- hydroxy- 6beta, 7beta, 15beta, 16beta- bisacrylamide- 17alpha- pregnane- 4- ene- 3- ketone- 21- carboxylate gamma- lactone and key intermediate used for the said method |
| 03/23/2011 | EP2297177A1 C-ring-substituted pregn-4-ene-21,17-carbolactone, and pharmaceutical preparations comprising the latter |
| 03/17/2011 | WO2010114305A3 Pegylated betulin derivative, and cosmetic composition containing the same |
| 03/03/2011 | DE102009031908A1 Producing drospirenone, useful as hormonal contraceptives, by oxidatively converting hydroxy-dimethylenandrostane-one to hydroxy-dimethylenandrostan-dione, eliminating hydroxy group, followed by reacting with 1-halopropan-3-oxy |
| 03/01/2011 | US7897587 Topical dermatological formulations and use thereof |
| 02/24/2011 | US20110046402 Novel method and intermediates for preparing 19-norsteroid compounds |
| 02/23/2011 | CN101981047A Novel lupane derivatives |
| 02/16/2011 | CN101977924A Novel c-21-keto lupane derivatives preparation and use thereof |
| 02/16/2011 | CN101972246A Medicament for treating cancer, preparation method thereof and application thereof to preparation of medicaments |
| 02/16/2011 | CN101503455B Method for preparing drospiroenon and intermediate |
| 02/16/2011 | CN101298465B Improved synthetic method of cyproterone acetate |
| 02/16/2011 | CN101033245B Preparation method and application of pedunculoside |
| 02/09/2011 | CN101967174A Composition preparation and purification process of cycloartenyl ferulate |
| 02/09/2011 | CN101128476B 18-methyl-19-nor-17-pregn-4-en-21,17-carbolactones and pharmaceutical preparations comprising the same |
| 02/09/2011 | CN101117349B A macrocyclic oxidation substituted pentacyclic triterpanoids derivative and preparation method and use thereof |
| 01/26/2011 | CN101061133B Industrial method for preparing 17- hydroxy- 6beta, 7beta, 15beta, 16beta- bisacrylamide- 3- oxo- 17alpha- pregnane- 4- ene- 3- ketone- 21- carboxylate gamma- lactone and key intermediate used for the |
| 01/20/2011 | US20110015162 15,16-Methylene-17-hydroxy-19-nor-21-carboxylic acid-steroid Y-lactone derivative, use thereof and medicinal products containing the derivative |
| 01/13/2011 | US20110008634 Rust inhibitor and surface treatment metal material |
| 01/11/2011 | US7868193 Contraceptives; hormone replacement therapy |
| 01/06/2011 | US20110003022 Composition and Method |
| 01/05/2011 | DE102009031909A1 Preparing drospirenone, useful e.g. as hormonal contraceptive, comprises reacting dimethylen-androst-4-en-dione with halo propionic acetaldehyde compound, converting dimethylen-hydroxy-(dialkoxypropyl) -androst-4-ene to spirol and oxidizing |
| 01/05/2011 | DE102009031907A1 Preparing drospirenone, useful as a component of hormonal contraceptives, comprises reacting dimethylen-androst-4-en-3,17-dione with o-(3-halopropionic acid)-trialkylester to give trialkoxypropyl-hydroxy-dimethylene-androst-4-en-3-one |
| 12/30/2010 | US20100331292 Substituted 16,17-annellated steriod compounds for use in womens healthcare |
| 12/30/2010 | US20100331291 Process for the preparation of drospirenone |
| 12/29/2010 | EP2266998A1 Process for obtaining 17-spirolactones in steroids |
| 12/29/2010 | EP2265629A2 Bismethylene-17 carbolactones and related uses |
| 12/29/2010 | CN101117348B A and C macrocyclic oxidation substituted pentacyclic triterpanoids and preparation method and use thereof |
| 12/29/2010 | CN101098702B Drugs, food or drink for improving pancreatic functions |
| 12/28/2010 | US7858606 Triterpenoid derivatives |
| 12/23/2010 | WO2010146042A1 Process for obtaining 17-spirolactones in steroids |
| 12/23/2010 | US20100324003 Aminooxime derivatives of 2- and/or 4-substituted androstanes and androstenes as medicaments for cardiovascular disorders |
| 12/16/2010 | WO2010142705A1 Substituted 16,17-annellated steroid compounds for use in women's healthcare |
| 12/16/2010 | US20100317638 Neuroactive 13,24-Cyclo-18,21-Dinorcholanes and Structurally Related Pentacylic Steroids |
| 12/16/2010 | CA2764252A1 Substituted 16,17-annellated steroid compounds for use in women's healthcare |
| 12/15/2010 | EP1828222B1 Process for the preparation of drospirenone |
| 12/15/2010 | CN101918427A 15,16-methylene-17-(1'-propenyl)-17,3'-oxidoestra-4-en-3-one derivative, use thereof, and medicament containing said derivative |
| 12/15/2010 | CN101918426A 17-(1'-propenyl)-17-3'-oxidoestra-4-en-3-one derivative, use thereof, and medicament containing said derivative |
| 12/14/2010 | US7851641 Compounds useful for treating neurodegenerative disorders |
| 12/14/2010 | US7851462 Methods and compositions for inhibiting tumor growth |
| 12/09/2010 | US20100311706 Method of treatment of allergic rhinitis |
| 12/08/2010 | EP2257567A1 Novel 17 beta lupane derivatives |
| 12/08/2010 | EP2038294B1 18-methyl-19-nor-androst-4-en-17,17-spiroether (18-methyl-19-nor-20- spirox-4-en-3-one) and pharmaceutical preparations containing the same |
| 12/08/2010 | CN1594355B Cyclovirobuxinum D crystal, its mono-methanol crystal, and preparation and use thereof |
| 12/08/2010 | CN101910192A 19-nor-steroid derivatives with a 15alpha,16alpha-methylene group and a saturated 17,17-spirolactone ring, use thereof, and medicaments containing said derivatives |
| 12/08/2010 | CN101910191A 15,16-methylene-17-hydroxy-19-nor-21-carboxylic acid gamma-lactone derivative, use thereof, and medicament containing said derivative |
| 12/08/2010 | CN101910190A 17-hydroxy-19-nor-21-carboxylic acid-steroid gamma-lactone derivative, use thereof, and medicament containing the derivative |
| 12/08/2010 | CN101328200B Antineoplastic compound, preparation and use thereof |
| 12/01/2010 | CN101306203B Hydrophilic polymer-boxwood extract conjugate and its medicine composition |
| 11/25/2010 | WO2010134830A1 Triterpenoid derivatives useful as antiproliferative agents |
| 11/25/2010 | WO2010133687A1 Cycloartanone derivatives with anticancer activity |
| 11/25/2010 | CA2795981A1 Compositions and methods for increasing telomerase activity |
| 11/24/2010 | EP2253641A2 A process for preparing drospirenone and intermediate thereof |
| 11/18/2010 | US20100292197 Compositions and Methods for Increasing Telomerase Activity |
| 11/18/2010 | US20100292184 17beta-cyano-19-androst-4-ene derivative, its use and medicaments comprising the derivative |
| 11/17/2010 | EP2250185A1 Novel lupane derivatives |
| 11/11/2010 | US20100286106 Methods and apparatus for treating the prostate |
| 11/10/2010 | CN1569884B Method for preparing astragaloside and its use in preparation of drug for preventing and treating diabetic nephropathy |
| 11/03/2010 | EP2246049A2 Pharmaceutical composition and dosage forms for administration of hydrophobic drugs |
| 10/14/2010 | WO2010118023A1 Methods for the preparation of drospirenone |
| 10/13/2010 | EP2238151A1 17-hydroxy-19-nor-21-carboxylic acid-steroid -lactone derivative, use thereof, and medicament containing the derivative |
| 10/13/2010 | EP2238150A1 15,16-METHYLENE-17-HYDROXY-19-NOR-21-CARBOXYLIC ACID y-LACTONE DERIVATIVE, USE THEREOF, AND MEDICAMENT CONTAINING SAID DERIVATIVE |
| 10/13/2010 | EP2238149A2 19-nor-steroid derivatives with a 15 ,16 -methylene group and a saturated 17,17-spirolactone ring, use thereof, and medicaments containing said derivatives |
| 10/13/2010 | EP2238148A1 15,16-methylene-17-(1'-propenyl)-17,3'-oxidoestra-4-en-3-one derivative, use thereof, and medicament containing said derivative |
| 10/13/2010 | EP2238147A2 17-(1'-propenyl)-17-3'-oxidoestra-4-en-3-one derivative, use thereof, and medicament containing said derivative |
| 10/07/2010 | WO2010114305A2 Pegylated betulin derivative, and cosmetic composition containing the same |