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Matches 1 - 50 out of 1,150

Document Document Title
WO/2018/037423A1
The present invention discloses a process for the preparation of pregnadiene derivatives having formula I, their stereoisomer and intermediate thereof. Formula I wherein each substituent is independently, R1 and R2 is hydrogen or C1 –C...  
WO/2017/208132A1
A process for the synthesis of 3β-hydroxy-17-(1H-benzimidazol-1-yl)androsta-5,16-diene is described, a compound also known as Galeterone and used in the treatment of prostate cancer, having the formula (I) given below.  
WO/2017/180051A1
There are provided odorless shea based esters as an ingredient composition comprising: a) 81- 97 wt% of at least one short chain alcohol alkyl ester, at least partially from a natural source, b) 3-19 wt% of triterpene esters where at lea...  
WO/2017/130127A1
The present invention relates to extraction of phytosterolsfrom alkaline tall oil soap which is obtained from the Kraft process black liquor by skimming.In the method according to the present invention, phytosterols are extracted using d...  
WO/2017/093980A1
The present invention relates to a process for purification of 4-androsten-3,17-dione (II) and its conversion to testosterone (I) having purity > 99 % as measured by HPLC.  
WO/2017/088080A1
The present invention relates to a method for obtaining and purifying saponins from plant extracts, which comprises extracting saponins and subsequently removing impurities by adding a salt selected from the group of alkaline earth metal...  
WO/2017/072719A1
The present invention relates to a new process for the synthesis of 17β-hydroxy- des-A-androst-9,10-en-5-one, the compound of the following formula (1), which can be used as an intermediate in the synthesis of retroprogesterones.  
WO/2017/019524A1
The present application relates to a method of preparing compounds of Formula (I) or a pharmaceutically acceptable salt, solvate, or amino acid conjugate thereof, R1 is H, α-OH, β-ΟΗ, or an oxo group.  
WO/2016/189200A1
Method of recovering sterols from tall oil pitch which contains steryl esters. In the method the tall oil pitch is subjected to a transefterification reaction with a lower alcohol in a reaction zone to provide a reaction product mixture ...  
WO/2016/173397A1
The present invention relates to a cholic acid derivative, and a preparation method and a medical use thereof. In particular, the present invention relates to a cholic acid derivative with the structure of formula (I), a stereoisomer, or...  
WO/2016/154772A1
The present invention relates to a method for preparing 9β,10α-pregnane-4,6-diene-3,20-dione. The preparation method uses 9β,10α-pregnane-5,7-diene-3,20-dione diethyl diacetal (compound A) as a raw material, which is deprotected unde...  
WO/2016/126875A1
The automated synthesis of clinically relevant amounts of 16β-18F-fluoro-5α-dihydrotestosterone (18F-FDHT) using a commercially available radiosynthesizer. Synthesis was performed in 90 minutes with a decay-corrected radiochemical yiel...  
WO/2016/096988A1
The present invention relates to method of extracting cholesterol from milk fat.  
WO/2016/054280A1
A method of preparing a thioic acid intermediate of fluticasone propionate includes: treating a 17β-[(N,N-dimethyl carbamoyl)thio]carbonyl compound in a solution including an alcohol and an alkali metal hydroxide, an alkaline-earth meta...  
WO/2016/039359A1
The present invention relates to: a terpenoid derivative which is capable of activating a Keap1/Nrf2/ARE signaling pathway and has an excellent anti-inflammatory activity and an excellent cell-protecting activity; and a sustained-release...  
WO/2015/168523A1
A liquid crystalline drug delivery system for ocular administration. The drug delivery system, which is mucoadhesive, biocompatible, non-irritating, and tissue permeable, contains nanoparticles stably dispersed in an aqueous solution and...  
WO/2015/158163A1
The present invention relates to cyclopentanoperhydrophenanthrene framework compounds and a preparation method therefor. The compounds have certain biological activity, can also be used as an intermediate synthon for synthesizing some co...  
WO/2015/095339A1
The present invention relates to the synthesis of ent-progesterone and intermediates thereof.  
WO/2015/081778A1
The present invention belongs to the field of organic synthesis, relates to a method for synthesizing a saponin, and in particular, to a method for constructing a glycosidic bond in a saponin, and comprises the following steps: directly ...  
WO/2015/057047A9
The invention relates to a method for the enzymatic synthesis of lithocholic acid oleate and for the efficient purification of same. The lithocholic acid oleate is a molecule that serves as an antimicrobial peptide elicitor and has an in...  
WO/2015/057047A1
The invention relates to a method for the enzymatic synthesis of lithocholic acid oleate and for the efficient purification of same. The lithocholic acid oleate is a molecule that serves as an antimicrobial peptide elicitor and has an in...  
WO/2015/047187A1
A new process for enrichment of triterpene esters, said process comprises the steps of: a) providing a mixture comprising a non-distilled vegetable oil and/or a non-distilled vegetable fat, further comprising triterpene esters, b) perfor...  
WO/2014/188353A2
The present application relates to a regioselective and stereoselective processes for the preparation of dehydroepiandrosterone (DHEA) and processes for its intermediates.  
WO/2014/188353A3
The present application relates to a regioselective and stereoselective processes for the preparation of dehydroepiandrosterone (DHEA) and processes for its intermediates.  
WO/2014/174338A1
A process is described wherein, using 17α-(3-hydroxyprapyl)-6β,7β,15β,16β- dimethylene-5β-androstane-3β,5,17β-triol (III) as starting product, there is obtained 3β,5-dihydroxy-6β,7β,15β,16β-dimethylene-5β-17α-pregn a-21, 1...  
WO/2014/169462A1
The present invention provides a class of fulvestrant ester derivatives and a preparation method thereof. Such a compound is an aliphatic ester compound formed by esterifying the -OH on positions C-3 and C-17 of the fulvestrant, having a...  
WO/2014/145302A3
The present invention relates to the synthesis of ent-progesterone and intermediates thereof.  
WO/2014/071983A1
The present invention relates to a process for making the compound 3β-acetoxy- androsta-5,16-dien-17-yl trifluoromethanesulfonate of formula (5) and is characterized in that dehydroepiandrosterone-3-acetate of formula (2) is reacted wit...  
WO/2014/020024A1
The present invention describes a process for the synthesis of ursodeoxycholic acid wherein the purification of the crude ursodeoxycholic acid (containing approximately 13-15% of chenodeoxycholic acid impurity) takes place first passing ...  
WO/2013/173862A1
The present invention provides an improved synthesis of a class of steroid saponins. Furthermore, the present invention provides a method of selectively discriminating between the C2 and C3 hydroxyl groups of a mono-glycosylated steroid ...  
WO/2013/168096A1
The invention relates to novel sterol derivatives, the preparation method thereof, pharmaceutical compositions containing them and use thereof for treating diseases involving transformed astrocyte cells or for treating malignant haemopat...  
WO/2013/159225A1
The specification relates to a process for preparation of 17-substituted steroid and intermediates useful therein. Embodiments of 17-substituted steroid have been shown as useful for treatment of androgen-dependent disorders, especially ...  
WO/2013/143494A1
Disclosed is a protopanaxatriol ginsenoside preparation method, comprising the following steps: (a) protecting the hydroxyl of the protopanaxatriol, exposing a 20-position hydroxyl and at least one of 3-position, 6-position and 12-positi...  
WO/2013/113294A1
Disclosed in the present invention are a sterol derivative, preparation method therefor and use thereof. Said sterol derivative comprises sterol compounds having structure according to formula (I), or pharmaceutically acceptable salts of...  
WO/2013/106975A1
The present invention provides extraction of brassinolide analogs from plants and applications thereof, comprising applications in promoting plant growth, resisting low temperature, and resisting and high salt. In addition, the present i...  
WO/2013/097835A1
The present invention relates to the fields of chemistry and pharmaceuticals and, in particular, to obtaining novel molecular entities — steroid derivatives — that affect the central nervous system. Diosgenin, which is a natural sapo...  
WO/2013/092668A1
The invention relates to a process for ethynylating 16-methylene-17-keto steroids to the corresponding 16-methylene-17α-ethynyl-17β-hydroxy steroids by treatment with silyl-protected lithium acetylides followed by further desilylation....  
WO/2013/076257A1
The present invention relates to a process for the preparation of sterol derivatives comprising the reaction of an α-epoxy compound with an amine in an alcohol comprising 3 to 5 carbon atoms as a solvent.  
WO/2013/076118A1
It is described of a process for the preparation of drospirenone, the compound of formula 1 shown below, a synthetic steroid with progestogenic, antimineralocorticoid and antiandrogenic activity, useful for preparing pharmaceutical compo...  
WO/2013/063859A1
Provided are an Ulipristal acetate (compound I) preparation method, a novel key intermediate (compound of formula IV) for preparing the Ulipristal acetate and preparation of the key intermediate. It has been surprisingly found in the pre...  
WO/2013/053691A1
The present invention relates to a process for the preparation of 17-substituted steroids and, more particularly, to an improved method of synthesizing abiraterone or derivatives thereof in high yield and purity by means of a key 3-forma...  
WO/2013/050553A1
The present invention relates to a process for the preparation of a compound of formula (I), hydrates or solvates thereof; (I) said process comprising the steps of a) reacting a compound of formula (II), with an acylating or a silylating...  
WO/2013/040706A1
A method of separating an aqueous portion from a heterogeneous sample containing said aqueous portion and a non-aqueous (lipid) portion, teaches passing a sample through glass wool, thus trapping the aqueous layer in the glass wool and e...  
WO/2013/030410A3
The present invention relates to processesfor obtaining abirateroneand derivatives thereof, such as abiraterone acetate, by means of a Suzuki coupling through a steroid borate of general formula (IV) or a C-C coupling through a steroid h...  
WO/2013/030410A2
The present invention relates to processesfor obtaining abirateroneand derivatives thereof, such as abiraterone acetate, by means of a Suzuki coupling through a steroid borate of general formula (IV) or a C-C coupling through a steroid h...  
WO/2013/012328A1
The present invention relates to a process for the preparation of estra-1,3,5(10)- trien-3, 15α, 16α, 17β-tetraol (estetrol), via a silyl enol ether derivative 17-B-oxy-3-A-oxy-estra-l,3,5(10), 16-tetraene, wherein A is a protecting g...  
WO/2013/001322A1
The synthesis consists of reaction steps as follows: oxidizing the α,β-unsaturated ketone system of ring "A" of pregn-4-ene-3,20-dion- of formula (II) with sodium metaperiodate in tert-butanol in the presence of potassium permanganate ...  
WO/2012/174229A3
Synthesis and purification of deoxycholic acid and its salts are provided.  
WO/2012/174229A2
Synthesis and purification of deoxycholic acid and its salts are provided.  
WO/2012/164095A1
The present invention relates to a process for the preparation of a compound of formula (I) comprising the steps of a) reacting a compound of formula (II) with a silylating or an acylating agent to produce compound of formula (III), wher...  

Matches 1 - 50 out of 1,150