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| Number | Title | Issue Date |
| 8030482 | Free cholesterol analogs bearing a boron dipyrromethene difluoro (BODIPY) fluorophore in the side chain and method of preparation and use thereof The present invention relates to free cholesterol analogs bearing a boron dipyrromethene difluoro (BODIPY) fluorophore in the side chain and methods of preparation. The compounds of the present invention can be used in fluorescence spectroscopy and fluorescence micr... | 10/04/2011 |
| 7002028 | 5-androsten-3β-ol steroid intermediates and processes for their preparation The present invention provides 5-androsten-3β-ol steroid intermediates and processes for their preparation. ... | 02/21/2006 |
| 6620801 | 17ଲ-amino and hydroxylamino-11ଲ-arylsteroids and their derivatives having agonist or antagonist hormonal properties The invention is directed to a novel class of steroids which exhibit potent antiprogestational activity.... | 09/16/2003 |
| 6489081 | Organosilyl radical generators and their applications Compounds of formula I ##STR1## wherein R1, R2, and R3 independently of one another are hydrogen; C1 -C20 alkyl which is unsubstituted or substituted by OH, C1 -C4 alkoxy, C... | 12/03/2002 |
| 6262042 | 17ଲ-amino and hydroxylamino-11ଲ-arylsteroids and their derivatives having agonist or antagonist hormonal properties The invention is directed to a novel class of steroids which exhibit potent antiprogestational activity.... | 07/17/2001 |
| 6133280 | Androgen synthesis inhibitors This invention relates to novel inhibitors of androgen synthesis that are useful in the treatment of prostate cancer and benign prostatic hypertrophy. The present invention also provides methods of synthesizing these novel compounds, pharmaceutical compos... | 10/17/2000 |
| 5808059 | Matrix-supported sapphyrins The invention relates to the field of polymer- and other matrix-supported sapphyrins. Disclosed are silica gel, glass, resin and other polymer- and matrix-supported sapphyrins and sapphyrin-containing chromatographic and electrophoretic supports.... | 09/15/1998 |
| 5792758 | Steroid nitrite ester derivatives useful as anti-inflammatory drugs The present invention discloses novel steroid nitrite ester derivatives, and to their use treating inflammatory diseases.... | 08/11/1998 |
| 5756722 | Intermediates for the preparation of Ɗ4,9(11),17(20) -pregnatriene-3-ones The novel intermediates of the formula ##STR1## wherein L, K and M are as defined in the specification which are useful intermediates for the preparation of Ɗ4,9(11),16 -pregnatriene-3-ones.... | 05/26/1998 |
| 5741795 | 16-substituted-6-aza-androsten-4-ene-3-ones as 5--reductase inhibitors Compounds of the formula I ##STR1## are inhibitors of 5-reductase, and are useful for the treatment of hyperandrogenic disorders such as acne vulgaris, seborrhea, female hirsutism, male pattern baldness, prostatic carcinoma, prostatitis and ... | 04/21/1998 |
| 5641767 | Modified bile acids process for their preparation and their use The invention relates to linker-modified bile acid derivatives of the formula I: ##STR1## wherein the radicals X1, X2, X3 and Y and n are as defined in the claims, and to a process for their preparation. The compounds... | 06/24/1997 |
| 5401864 | Process for preparing 21 acyloxy-Ɗ4,9(11),16 pregnatrienes 3-20-dione A process for the preparation of a compound of the formula ##STR1## wherein R1 is acyl of 1 to 8 carbon atoms, by reducing an intermediary to form an alcohol, oxidizing the alcohol to form an aidehyde, which is subjected to the action of a... | 03/28/1995 |
| 5372996 | Method of treatment of androgen-related diseases A method of treatment of androgen-related diseases such as prostate cancer in susceptible male animals, including humans, comprises administering novel antiandrogens and/or novel sex steroid biosynthesis inhibitors as part of a combination therapy. Sex st... | 12/13/1994 |
| 5358940 | Chelate complexes and processes for their preparation Naphthalocyanine-chelate complexes of formula I ##STR1## are described which contain as central atom M aluminum, gallium, indium, fin, ruthenium or preferably germanium and in which the remaining symbols are as defined in claim 1. The complexes can b... | 10/25/1994 |
| 5359055 | Pregnane derivatives and processes for production thereof There are provided pregnane derivatives represented by formula ##STR1## wherein A1 represents a hydrogen atom or a hydroxyl group, A2 represents a substituent such as a hydroxyl group when A1 represents a hydrogen ato... | 10/25/1994 |
| 5359054 | Initial compounds for the production of 10ଲ-H-steroids and a process for the production of these initial compounds The invention includes compounds of the following formula ##STR1## where A and B either A and B form an additional double bond and D is a hydrogen atom or B and D form an additional double bond and A is a hydrogen atom and the other variables are as ... | 10/25/1994 |
| 5352781 | Process for precursors to calcitriol and related compounds The process of the invention comprises reacting a C-22-halo-23,24-bisnorsteroid or C-22-halo-23,24-bisnor-9,10-secosteroid with a nickel complex of an electron withdrawing alkene of the formula ##STR1## wherein R1 is hydrogen, hydroxycarbo... | 10/04/1994 |
| 5336686 | 17 Methylene lactones of steroids A compound selected from the group consisting of a compound of the formula ##STR1## wherein the substituents are defined as in the application having antiglucocorticoid and antiprogestomimetic properties and a process and intermediates for their prep... | 08/09/1994 |
| 5232915 | 9-hydroxy-19,11ଲ-bridged steroids, their production and pharmaceutical preparations containing these steroids 9-Hydroxy-19,11ଲ-bridged steroids of general formula I ##STR1## are described. The more detailed meaning of A, B, R1, R2, G, Z, R4 --Y and R4' --Y' follows from the description. The steroids of... | 08/03/1993 |
| 5218109 | Steroid compounds Steroid compounds of the following general formulas (I), (II) and (III) are provided: ##STR1## In the above formulas, R1 and R2 each is a hydrogen atom or a hydroxyl-protecting group, R is a group of the formula --CH2... | 06/08/1993 |
| 5187273 | Ɗ4,9(11),17(20) -pregnatriene-3-ones A compound of the formula ##STR1## wherein Hal is chlorine or bromine, R is selected from the group consisting of alkyl of 1 to 6 carbon atoms, aralkyl of 7 to 15 carbon atoms and a silylated group, K is a protective group selected from the grou... | 02/16/1993 |
| 5182381 | Intermediates for 3-keto-19-nor-Ɗ4,9 -steroids Novel 3-keto-19-nor-Ɗ4,9 -steroids of the formula ##STR1## and their non-toxic, pharmaceutically acceptable acid addition salts possessing a remarkable antiglucocorticoidal activity.... | 01/26/1993 |
| 5144032 | Preparation of tertiary amine borane adducts An improved curing agent for use in coatings, laminates, moldings, castings and adhesives comprising the use of an amine-boron adduct component along with anhydride and epoxy component mixtures. Also provided is an improved process for the preparation of ... | 09/01/1992 |
| 5010202 | Novel silicon-organic compounds, containing an oxazolidine group Novel silicon-organic compounds containing an oxazolidine group are defined by the general formula (I): ##STR1## wherein R1, R2, R3, R4, R5, X, n and y have the meanings reported in the descripti... | 04/23/1991 |
| 4977291 | Process of producing a silanic or siloxanic compound containing at least one cycloalkyl ring A process of producing a silanic or siloxanic compound containing at least one cycloalkyl ring by the hydrogenation of a corresponding compound containing at least one aromatic ring, in the presence of a Raney nickel catalyst having a granulometry compris... | 12/11/1990 |
| 4977255 | Steroidal 17-silyl ethers and process to corticoids and progesterones 17ଲ-Cyano-17-hydroxy steroids (I) are transformed to 17-halo silyl ethers (II) which are intermediates useful in the production of progesterones (V), 17-hydroxyprogesterones (VI), corticoids (VII) and 21-halo corticoids (III) which can... | 12/11/1990 |
| 4975536 | Conversion of a delta16-steroid to a delta17(20)-20-silyl ether The present invention is a process for conversion of Ɗ16 -steroids (I) ##STR1## to the corresponding Ɗ17(20) -20-silyl ether (III) ##STR2## by reaction with (1) a preformed copper hydride or a metal hydride reducing ... | 12/04/1990 |
| 4954414 | Photosensitive composition containing a transition metal coordination complex cation and a borate anion and photosensitive materials employing the same A composition including a cationic transition metal coordination complex and a borate anion, wherein said composition is capable of absorbing actinic radiation and producing free radicals which can initiate free radical addition polymerization of a free r... | 09/04/1990 |
| 4929395 | 16-methylation process C16 -unsaturated corticoids are readily transformed to the corresponding 16-methyl-17-hydroxy corticoids by use of a Ɗ17 (20)-20-silyl ether.... | 05/29/1990 |
| 4921638 | 17ଲ-cyano-9,17-dihydroxyandrost-4-en-3-one The invention is the compound 17ଲ-cyano-9, 17-dihydroxyandrost-4-en-3-one (I) which is particularly useful as an intermediate in the production of the 17-halo silyl ethers (II).... | 05/01/1990 |
| 4912097 | Novel 11 ଲ-alkynylphenyl-10-nor-steroids Novel 11ଲ-alkynylphenyl-19-nor-steroids of the formula ##STR1## wherein R1 is alkynyl of 2 to 8 carbon atoms optionally substituted with at least one member of the group consisting of --OH halogen, trialkylsilyl of 1 to 6 alkyl carbo... | 03/27/1990 |
| 4898694 | 17-Hydroxy-steroids Compounds of the formulae: ##STR1## are useful as anti-cancer, anti-obesity, anti-diabetic, anti-coronary agents, anti-aging agents, anti-hypolipidemic agents and anti-autoimmune agents.... | 02/06/1990 |
| 4891426 | 16-methyl-17 20-epoxysteroid and process C16 -unsaturated corticoids are readily transformed to the corresponding 16-methyl-17-hydroxy corticoids by use of a Ɗ17(20)-20-silyl ether.... | 01/02/1990 |
| 4758383 | Ergosta-1,5,7,22-tetraen-3ଲ-ol and its use as an intermediate for 1-hydroxy vitamin D2 New processes for preparing new steroid derivatives including ergosta-1,5,7,22-tetraen-3ଲ-ol, 1-hydroxyergosteryl diacetate, etc. which are useful intermediates in the synthesis of 1-hydroxy vitamin D2. The processes include... | 07/19/1988 |
| 4634695 | Steroid derivatives Novel 19-nor steroids and 19-nor-D-homo-steroids of the formula ##STR1## wherein R1 is an organic radical of 1 to 18 carbon atoms containing at least one atom selected from the group consisting of nitrogen, phosphorous and silicon with the... | 01/06/1987 |
| 4614616 | Process for preparing 3댧ଲ-dihydroxy-Ɗ5 -steroids A process for preparing a 3ଲ,7ଲ-dihydroxy-Ɗ5 -steroid of the formula ##STR1## wherein Q is ##STR2## and R1 is hydrogen, trimethylacetyl, tert-butyldimethylsilyl, dimethyl-2-(3-methylbutyl)silyl or tribenzy... | 09/30/1986 |
| 4599330 | Method of treating milk fever The present invention relates to a method of preventing milk fever which comprises administering to a preparturient female ruminant an effective amount of 24,24-difluoro-1,25-dihydroxycholecalciferol.... | 07/08/1986 |
| 4568492 | Ɗ16-20-Keto steroid conversion to 17-hydroxy-20-keto steroids Ɗ16-20-keto steroids (I) are converted to 17-hydroxy-20-keto steroids (III) in 2 steps, hydrosilylation followed by peracid oxidation.... | 02/04/1986 |
| 4550163 | Ligand analog-irreversible enzyme inhibitor conjugates The present invention encompasses a method for determining ligands in test samples comprising intermixing with the test sample a ligand analog-irreversible enzyme inhibitor conjugate and a binding protein bindable to the ligand and the ligand analog-irrev... | 10/29/1985 |
| 4548748 | Cyanohydrin process Using cyanohydrin intermediates, 17-keto steroids are transformed to corticoids and 17-acyl progesterones.... | 10/22/1985 |
