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8119619 |
Pregnane steroids and their use in the treatment of CNS disorders
Steroid compounds possessing a hydrogen donor in 3beta position, either in the form of a hydroxy- or a sulfate group, function as efficient blockers of the 3alpha-hydroxy-pregnan-steroid action and...
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7960367 |
Pregnane steroids and their use in the treatment of CNS disorders
Steroid compounds processing a hydrogen donor in 3beta position, either in the form of a hydroxy- or a sulfate group, function as efficient blockers of the 3alpha-hydroxy-pregnan-steroid action and...
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7888340 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Pregnane steroids and their use in the treatment of CNS disorders
Steroid compounds processing a hydrogen donor in 3beta position, either in the form of a hydroxy- or a sulfate group, function as efficient blockers of the 3alpha-hydroxy-pregnan-steroid action and...
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6117994 |
Intermediates for 16β-methyl steroids
A new process for the preparation of 16β-methyl-steroids of the formula ##STR1## and novel intermediates.
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5591733 |
Methods, compositions, and compounds for allosteric modulation of the gaba receptor by members of the androstane and pregnane series
Method, compositions, and compounds for modulating brain excitability to alleviate stress, anxiety, insomnia and seizure activity using certain steroid derivatives that act at a newly identified...
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5438134 |
Process for the production of unsaturated 17 α-cyanomethyl-17 β- h
The unsaturated 17α-cyanomethyl-17β-hydroxy steroids of the formula I, ##STR1## in which R1 =Me, Eth; R2 =H, Me; R3 =H, OH, an acetoxy or alkoxy group; R4 =H, R5 =OH, an acetoxy, alkoxy group of R...
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5359054 |
Initial compounds for the production of 10β-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...
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5194602 |
9α-hydroxy-17-methylene steroids, process for their preparation and their use in the preparation of corticosteroids
New 9α-hydroxy-17-methylene steroids are prepared by the introduction of a substituted 17-methylene group in 9α-hydroxyandrost-4-ene-3, 17-dione.The resulting compounds are useful starting c...
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5003063 |
Conversion of steroidal 17-cyanohydrins to corticoids
The invention involves a two step chemical transformation of a steroidal 17-cyanohydrin (II) ##STR1## to a 17α-hydroxy-21-halo-20-keto steroid (IV) ##STR2## intermediate which can readily be ...
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4780461 |
13α-alkyl-gonanes, their production, and pharmaceutical preparations containing same
13α-alkylgonanes of formula I ##STR1## where R is an acyl radical with as many as 10 C-atoms, and X is an oxygen atom or the grouping N--OH,have a strong antigestagenic effect and can be used for ...
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4647410 |
Novel 17-substituted steroids
Novel 17-(formamidosulfonylmethylene)-steroids of the formula ##STR1## useful as intermediates for the novel 17-(isocyanosulfonylmethylene)-steroids of the formula ##STR2## which are useful...
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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...
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4609651 |
11β-arylestradienes, their production, and pharmaceutical preparations containing same
11β-Arylestradienes of general Formula I are disclosed ##STR1## wherein R2 is a hydrogen atom, a methyl group, or an ethyl group, R3 is a hydrogen atom or an acyl group, R1 and A-B have various ...
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4585590 |
Cyanohydrin process
Using cyanohydrin intermediates, 17-keto steroids are transformed to corticoids and 17α-acyl progesterones.
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4565656 |
Preparation of 17β-hydroxyacetyl-17α-ol-steroids
A novel process for the preparation of 17β-hydroxyacetyl-17α-ol-steroids of the formula ##STR1## wherein R1 is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms o...
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4548749 |
Process for the preparation of 21-hydroxy-20-keto-Δ16 -steroids and new intermediate compounds formed in this process
A novel process for the preparation of 21-hydroxy-20-keto-Δ16 -steroids comprising reacting a 17-(isocyanosulfonylmethylene)-steroid with an aldehyde and an alcohol to form a ...
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4548748 |
Cyanohydrin process
Using cyanohydrin intermediates, 17-keto steroids are transformed to corticoids and 17α-acyl progesterones.
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4495102 |
Aminoalkyl steroids
Compounds of Formula I and II are useful as potent antiarrythmic agents without significant effect on cardiac output and blood pressure.
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4147695 |
11β-Substituted-Δ9 -steroids
Novel 11β-substituted-Δ9 -ene-5α-ols of the formula ##STR1## wherein K is a blocked ketone in the form of a ketal, thio-ketal or methyloxime, X is a pentagonal or hexagonal ring optionally su...
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4110325 |
21-(Acetyloxy)-3-oxo-24-norchola-4,20(22)-diene-23-nitrile and intermediates thereto
Preparation of 21-(acetyloxy)-3-oxo-24-norchola-4,20(22)-diene-23-nitrile; its diuretic, antiulcerogenic, and antiviral utility; and intermediates whereby the preparation can be variously effected...
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4081537 |
Δ15 -Steroids and pharmaceutical compositions thereof
Δ15 -Steroids of the formula ##STR1## wherein R1 is a hydrogen atom, trialkylsilyl or acyl; R2 is ethynyl, chloroethynyl or propinyl; and X is an oxygen atom, ##STR2## or NOR4 wherein R3 is a ...
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4059575 |
Process for the preparation of 17(20)ene-21-steroid aldehydes
There is disclosed a process for the efficient conversion of 17-α-ethynyl 17-β- hydroxy steroids into the corresponding 17(20) αβ-unsaturated 21-steroid aldehydes. The process comprises the seq...
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3997664 |
Substituted carbinol derivatives
The compounds are steroidal 17-propadienyl carbinols and derivatives thereof. The compounds have estrogenic/progestational activity.
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3944576 |
Novel steroids of the oestrane series substituted in 7-position
The invention relates to novel 7-substituted-steroids of the oestrane series of the general formula: ##SPC1##In whichRing A including carbon atom 6 is ##SPC2## R1 = an alkyl group with 1-4 C-atoms,...
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3869452 |
14Beta,18-(epoxyethanoimino) steroids
Compounds of the class of 14β,18-(epoxyethanoimino)-pregnane derivatives and their pharmceutically acceptable acid addition salts have cardiotonic activity and are active ingredients of ...
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3817989 |
PROCESS FOR THE PRODUCTION OF 14β, 18- and 5β, 19-(EPOXYETHANOIMINO)-STEROIDS
A new process for the production of 14β, 18- and 5β, 19-(epoxyethanoimino)-steroids is provided, which comprises reacting corresponding thiolactams, i.e. 2'-thioxo-14β, 18- and 5β, 19-...
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3697510 |
NOVEL PREPARATION OF PREGNANES
Novel process for the preparation of steroids of the pregnane series from certain estrane derivatives which pregnanes are intermediates for cortisone derivatives.
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3674815 |
UNSATURATED 22-GUANIDYL STEROIDS
22-Guanidyl steroids of the formula ##SPC1## Which R is a hydrogen atom or an acid residue and Δ represents a double bond present in at least one of rings A and B and between carbon atoms C17 and ...
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3522243 |
OMEGA-AMINO 1-ALKYNYL STEROIDS AND REDUCTION PRODUCTS THEREOF
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3510556 |
17ALPHA-ETHERS OF 16-METHYLENE-19-NOR-PROGESTERONES
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3493563 |
PROCESS FOR THE PRODUCTION OF INTERMEDIATES FOR TRIAMCINOLONE AND RELATED COMPOUNDS
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3555053 |
13BETA-ALKYL-9BETA,10ALPHA-PREGNANES
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3580905 |
3(AMINOALKOXYCARBONYLALKYLENE) STEROID DERIVATIVES
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3770725 |
17BETA-CYANO-UNSATURATED STEROIDS PROCESS AND THERAPEUTIC METHOD
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3798215 |
PROPADIENYL-SUBSTITUTED CARBINOLS
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3578659 |
18-NOR-14 BETA-PREGNANO-(13,14-F)-HEXAHYDRO-1,4-OXAZEPINES
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3591611 |
3-OXYGENATED-17-UREIDO-ANDROSTANES AND PROCESS
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3487076 |
17ALPHA-AMINO-PROGESTERONE AND INTERMEDIATES IN THE PRODUCTION THEREOF
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3466276 |
2-PIPERIDYLGLYCOL KETALS OF STEROIDAL COMPOUNDS
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3444161 |
ALKYL CYANO ALUMINUM COMPOUNDS AND PROCESS FOR INTRODUCING A CYANO GROUP INTO AN ALPHA,BETA UNSATURATED CARBONYL COMPOUND
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3440243 |
16-SUBSTITUTED ESTRATRIENES AND METHODS OF PREPARING THE SAME
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3388138 |
16alpha-fluoromethyl-21-fluoro and 21-desoxy compounds of the pregnane series
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3361744 |
Novel 17-hydrocarbon substituted progesterones, intermediates and methods of preparing the same
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3355450 |
17-dialkylaminoalkyl ethers of steroids
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3345363 |
5alpha-hydroxy-6beta-azidopregnanes and 5alpha-hydroxy-6beta-aminopregnanes
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3338891 |
B-nor-6-methyl steroids
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3325480 |
5'-substituted steroidal pyrazoles of the pregnane series
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3305545 |
3-lower alkyl enolethers of 3-keto-2-carboxy steroids and derivatives thereof
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3299048 |
3alpha, 5alpha-epoxy methano-steroidal compounds and process for the production thereof
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3297688 |
17alpha-acyl-16alpha-hydroxyprengene derivatives and process for preparing them
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