| 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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| 03/27/2013 | CN102046646B C-ring-substituted pregn-4-ene-21,17-carbolactone, and pharmaceutical preparations comprising the latter |
| 03/26/2013 | CA2761534C A process for the preparation of drospirenone |
| 03/26/2013 | CA2670284C Synthesis of compounds useful as modulators of amyloid-beta production |
| 03/21/2013 | WO2013038316A1 Method for preparation of betulinic acid |
| 03/21/2013 | WO2013038314A1 Method for preparation of betulinic acid |
| 03/21/2013 | WO2013038312A1 Method for preparation of betulinic acid |
| 03/21/2013 | US20130072465 Novel betulinic acid derivatives with antiviral activity |
| 03/14/2013 | US20130065868 Anxioytic marcgraviaceae compositions containing betulinic acid, betulinic acid derivatives, and methods |
| 02/27/2013 | CN101717427B Process for extracting astragaloside IV |
| 02/26/2013 | US8383809 Process for the preparation of drospirenone |
| 02/14/2013 | WO2013020245A1 Carbonyl derivatives of betulin |
| 02/13/2013 | CN102395596B Preparation method of drospirenone |
| 02/07/2013 | US20130035318 C-17 and c-3 modified triterpenoids with hiv maturation inhibitory activity |
| 02/06/2013 | CN102911239A Preparation method of picfeltrarraenin IA |
| 02/05/2013 | US8367648 Substituted 16,17-annellated steroid compounds for use in womens healthcare |
| 01/31/2013 | US20130030169 Process for the Preparation of Drospirenone |
| 01/31/2013 | US20130029954 C-28 amines of c-3 modified betulinic acid derivatives as hiv maturation inhibitors |
| 01/30/2013 | EP2551275A1 Process for the preparation of drospirenone |
| 01/23/2013 | EP2548881A1 Preparation method of drospirenone |
| 01/23/2013 | CN102887934A Preparation method of drospirenone |
| 01/23/2013 | CN102887933A New compound and extraction method and application thereof |
| 01/16/2013 | CN101830965B Method for catalyzing and hydrolyzing natural nucleoside compound by metal ion |
| 01/02/2013 | CN101743248B Process for the preparation of 17-(3-hydroxypropyl)-17-hydroxysteroids |
| 12/18/2012 | US8334375 Methods for the preparation of drospirenone |
| 11/29/2012 | WO2012160250A2 Method for treating birch bark and the use of the product |
| 11/29/2012 | US20120302534 Derivatives of betulin |
| 11/29/2012 | US20120302530 23-hydroxy-betulinic acid derivatives, preparation methods and uses thereof |
| 11/28/2012 | EP2527356A2 Process for the Production of 3-Oxo-pregn-4-ene-21,17-carbolactones by the Metal-Free Oxidation of 17-(3-Hydroxypropyl)-3,17-dihydroxyandrostanes |
| 11/14/2012 | CN101255184B Hepatitis B resistant compound, medicament composition and use in medicament preparation |
| 11/13/2012 | US8309712 Industrial process for the preparation of 17-hydroxy-6beta,7beta;15beta, 16beta-bismethylene-3-oxo-17alpha-pregn-4-ene-21-carboxylic acid y-lactone and key intermediates for this process |
| 11/08/2012 | US20120283217 Modulators of amyloid-beta production |
| 10/31/2012 | CN101511857B 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 |
| 10/24/2012 | CN102746362A Method for extracting refined astragaloside from astragaliradix |
| 10/24/2012 | CN102746361A Saponin plant extract type hydrate anti-agglomerant |
| 10/18/2012 | US20120264723 Process for the preparation of drospirenone |
| 10/16/2012 | CA2594171C 18-methyl-19-nor-17-pregn-4-ene-21,17-carbolactones, as well as pharmaceutical preparations that contain the latter |
| 10/03/2012 | CN102086224B Preparation method of Abrusoside D |
| 09/18/2012 | US8269026 Lupane derivatives useful for treating HIV |
| 09/06/2012 | DE102011004899A1 New 17-hydroxy-17-pentafluoroethyl-estra-4,9(10)-dien-11-aryl-deriva tives are progesterone receptor antagonists useful to treat and prevent e.g. uterine fibroids, endometriosis, heavy menstrual bleeding and meningioma |
| 09/05/2012 | CN102030799B Cycloastragenol-6-O-beta-D glucoside monohydrate and crystal thereof |
| 09/05/2012 | CN101735300B Method for preparing 6beta,7beta-methylene-steride-3beta,5beta-diol |
| 09/05/2012 | CN101223186B Process for the production of 3-oxo-pregn-4-ene-21,17-carbolactones by the metal-free oxidation of 17-(3-hydroxypropyl)-3,17-dihydroxyandrostanes |
| 08/23/2012 | WO2012109752A1 Steroid alkaloids and uses thereof as antimicrobial agents against electron transport-deficient microbes and as potentiators for antimicrobial agents against pathogenic bacteria |
| 08/23/2012 | US20120214775 Pharmaceutical Salts of 3-O-(3',3'-Dimethylsuccinyl) Betulinic Acid |
| 08/23/2012 | CA2828047A1 Steroid alkaloids and uses thereof as antimicrobial agents against electron transport-deficient microbes and as potentiators for antimicrobial agents against pathogenic bacteria |
| 08/21/2012 | CA2564889C A process for preparation of timosaponin b ii |
| 08/16/2012 | WO2012107513A1 Process for obtaining drospirenone |
| 07/24/2012 | US8227596 Process for the preparation of drospirenone |
| 07/18/2012 | CN101830959B Method for synthesizing drospirenone |
| 07/11/2012 | CN101570560B Two sterol derivatives, separation and extraction method thereof and application thereof in preventing and treating prostatoplasia diseases |
| 07/04/2012 | CN101775056B Method for extracting, separating and purifying Astragaloside IV from Astragalus mongholicus |
| 07/04/2012 | CN101565444B Circular altin type triterpene in Kleinhovia hospital as well as preparation method and application thereof |
| 06/27/2012 | CN101704872B 23-hydroxybetulinic acid derivatives as well as preparation methods and application thereof |
| 06/20/2012 | EP2297177B1 C-ring-substituted pregn-4-ene-21,17-carbolactone, and pharmaceutical preparations comprising the latter |
| 06/07/2012 | US20120142653 C-28 amides of modified c-3 betulinic acid derivatives as hiv maturation inhibitors |
| 06/07/2012 | US20120142651 Method of treatment of allergic rhinitis |
| 05/30/2012 | CN102477062A Method for extracting liquidambaric acid from supercritical fluid |
| 05/30/2012 | CN101972246B Medicament for treating cancer, preparation method thereof and application thereof to preparation of medicaments |
| 05/24/2012 | US20120128733 Pharmaceutical compositions comprising active drugs, contraceptive kits comprising active drugs, and methods of administering the same |
| 05/23/2012 | CN102464696A 从米糠中提取谷维素的工艺 Oryzanol from rice bran extraction process |
| 05/23/2012 | CN101065396B Process for the preparation of drospirenone |
| 05/16/2012 | CN102459304A 用于女性保健的取代16,17-稠合的类固醇化合物 Health care for women replace 16,17 fused steroid compound |
| 05/16/2012 | CN101343305B Preparation method for astragaloside |
| 05/15/2012 | CA2517893C Use as medications of cholest-4-en-3-one derivatives, pharmaceutical compounds containing them, new derivatives and their preparation process |
| 05/09/2012 | CN102443072A Method for simultaneously extracting polysaccharides and saponins from astragalus |
| 05/02/2012 | CN1944454B Anti-cancer compound, method for extracting said compound, composition containing said compound, and its use in medicine production |
| 05/02/2012 | CN101284860B Antineoplastic pharmaceutical compositions, preparation method and applications thereof |
| 04/18/2012 | EP2440567A1 Substituted 16,17-annellated steroid compounds for use in women's healthcare |
| 04/17/2012 | CA2515384C Medicament for inhibiting tumour growth |
| 04/11/2012 | EP2437606A1 Compositions and methods for increasing telomerase activity |
| 03/29/2012 | US20120077777 Ngcycloartanone derivatives with anticancer activity |
| 03/28/2012 | EP2433951A2 A process for the preparation of drospirenone |
| 03/28/2012 | EP2432799A1 Cycloartanone derivatives with anticancer activity |
| 03/20/2012 | CA2498634C A process for the preparation of drospirenone |
| 03/20/2012 | CA2474688C Improved process for obtaining betulinic acid |
| 03/06/2012 | CA2560694C Progesterone receptor modulators |
| 02/23/2012 | WO2012023599A1 Process for production of triterpene alcohol |
| 02/16/2012 | US20120040930 Tetracyclic terpene series compounds, methods for preparing same, uses thereof as medicines and pharmaceutical compounds containing same |
| 02/15/2012 | EP2417149A1 Methods for the preparation of drospirenone |
| 02/09/2012 | WO2012016860A1 Methods for the preparation of drospirenone and intermediates thereof |
| 02/09/2012 | CA2807420A1 Methods for the preparation of drospirenone and intermediates thereof |
| 02/08/2012 | EP2415778A1 Methods for the preparation of Drospirenone and intermediates thereof |
| 02/02/2012 | US20120028945 5-Beta, 14-Beta-Androstane Derivatives Useful For The Treatment Of Proteinuria, Glomerulosclerosis And Renal Failure |
| 02/01/2012 | EP2088152B1 N'-{n-[3-oxo-lupen-28-oyl]-9-aminononanoyl}-3-amino-3-phenylpropeonic acid and the pharmaceutically acceptable derivatives thereof, a method for the production and the use thereof in the form of a medicinal agent |
| 01/19/2012 | CA2805136A1 New compounds for treating cancer and other diseases |
| 01/11/2012 | CN102311479A Method for extracting oryzanol by non-polar solvent extraction method |
| 01/10/2012 | US8093413 Method of preparation and isolation of betulin diacetate from birch bark from paper mills and its optical processing to betulin |
| 01/04/2012 | CN101781354B Production method for preparing astragaloside A |
| 01/03/2012 | US8088757 Betulinol derivatives as anti-cancer agents |
| 12/28/2011 | CN102295675A 檗谷素及其衍生物以及合成方法 Bo Gu and its derivatives, and synthetic methods |
| 12/21/2011 | CN102286054A Cyclovirobuxinum D derivatives and preparation method and use thereof |
| 11/23/2011 | CN102250186A Berberine-oryzanol compound, and preparation method and application thereof |
| 11/16/2011 | CN102241685A Separation method of monomeric compound from astragaloside for injection |
| 11/10/2011 | US20110275796 Process for the Production of 3-Oxo-pregn-4-ene-21,17-carbolactones by the Metal-Free Oxidation of 17-(3-Hydroxypropyl)-3,17-dihydroxyandrostanes |
| 11/01/2011 | US8048918 Treatment of hyperproliferative diseases |
| 10/19/2011 | EP2377874A1 Antioxidant |
| 10/12/2011 | CN102216317A Antioxidant |
| 10/04/2011 | US8030298 17β-HSD1 and STS inhibitors |
| 09/22/2011 | WO2011113196A1 Preparation method of drospirenone |
| 09/20/2011 | US8022044 Compositions and methods for therapeutic use |