U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 552/515 - Nitrogen bonded directly to the cyclopentanohydrophenanthrene ring system


Subclass of Class 552 - Organic compounds -- part of the class 532-570 series
Definition: Compounds in which nitrogen is bonded directly to the cyclopentanohydrophenanthrene ring
No. of patents: 67
Last issue date: 03/27/2007


1    
NumberTitleIssue Date
7196074Methods of making, using and pharmaceutical formulations comprising 7α, 11β-dimethyl-17β-hydroxyestra-4, 14-dien-3-one and 17 esters thereof
Methods of using 7α,11β-dimethyl-17β-hydroxyestra-4,14-dien-3-one (III) and 17 esters thereof for various hormonal therapies, oral and parenteral dosage forms comprising these actives, and processes for their ...
03/27/2007
710936016-hydroxyestratrienes as selectively active estrogens
The invention describes new compounds as pharmaceutical active ingredients, which have in vitro a higher affinity to estrogen receptor preparations from rat prostates than to estrogen receptor preparations from rat uteri and in vivo a preferential action on bone rat...
09/19/2006
7037907Estradiol conjugates and uses thereof
A conjugated prodrug of an estradiol compound conjugated to a biological activity modifying agent. ...
05/02/2006
6780854Orally active androgens
Novel, orally active androgens are 7α-substituted Δ14-nandrolone derivatives. The compounds satisfy the general formula: wherein R1 is O, (H,H), (H,OR), NOR, with R being hydrogen, (C1...
08/24/2004
659688519-Nor steroids having a thiocarbonated chain in position 11beta, their preparation process and the intermediates of this process, their use as medicaments and compositions
Novel compounds having a formula selected from the group consisting of ##STR1## wherein the substituents are defined as in the specification which are intermediates for the production of vinyl compounds having a remarkable anti-estrogenic and anti-prolife...
07/22/2003
65798643-methylene steroid derivatives
The invention concerns a 3-methylene steroid derivative having general formula (1) wherein R1 is H or together with R3 forms a ଲ-epoxide or R1 is absent if there is a 5-10 or 4-5 double bond; R2 is (C...
06/17/2003
651826222R-hydroxycholesta-8, 14-diene derivatives for the inhibition of meiosis
The invention relates to 22R-hydroxycholesta-8,14-diene derivatives having general formula (I) wherein R1 is OR, OS03 H or .dbd.NOR; with R being H, (C1-6)alkyl or (C1-6)acyl; each of R2 and R3 ...
02/11/2003
641395120-fluoro-17(20)-vinyl steroids
The invention relates to 20.xi.-fluoropregna-4,17(20)-dien-3-on-21-oic acid ethyl ester, 20.xi.-fluoro-3ଲ-hydroxypregna-5,17(20)-dien-21-oic acid ethyl ester, 20.xi.-fluoro-21-hydroxypregna-4,17 (20)-dien-3-one, 20.xi.-fluoropregna-5,17(20)-dien-3&#...
07/02/2002
626204217ଲ-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
626228217ଲ-allyloxy(thio)alkyl-androstane derivatives for the modulation of meiosis
The invention relates to 17ଲ-allyloxy(thio)alkyl-androstane derivatives having general formula (I) wherein R1 is (H, OR), (H, OSO3 H) or NOR; with R being H, (C1-6)alkyl or (C1-6)acyl; each of R2
07/17/2001
625188717ଲ-aryl(arylmethyl)oxy(thio)alkyl-androstane derivatives
The invention relates to 17ଲ-aryl(arylmethyl)oxy(thio)alkyl-androstane derivatives having general formula (I), wherein R1 is (H,OR), (H,OSO3 H) or NOR; with R being H, (C1-6)alkyl or (C1-6)acyl; each of R
06/26/2001
618080319-nor-pregnene derivatives and pharmaceuticals containing such derivatives
The invention relates to compounds of the formula: ##STR1## in which R1, R2, R3, R4, R5, R6, n and X are as defined in the specification, and to pharmaceutical compositions containing them....
01/30/2001
6046186Estrone sulfamate inhibitors of estrone sulfatase, and associated pharmaceutical compositions and methods of use
Novel compounds useful as inhibitors of estrone sulfatase are provided. The compounds have the structural formula (I) wherein r1 is an optional double bond, R1 and R2 are selected from the group consisting of hydrogen and lower alky,...
04/04/2000
5990328Process for the preparation of 4-amino-Ɗ4-3-ketosteroids via 4-nitro-Ɗ4-3-ketosteroids
The present invention provides 4-nitro-Ɗ4 -3-ketosteroids, their use as steroid C17-20 lyase and 5଱-reductase inhibitors and to a novel process for preparing a compound of the formula: ##STR1## comprising sequentially: a)...
11/23/1999
5965550Process for the preparation of 4-amino-Ɗ4 -3-ketosteroids via 4-nitro-Ɗ4 -3-ketosteroids
The invention discloses 3-ketosteroids of the following formula used to inhibit steroid C17-20 lyase: ##STR1## wherein R is OH, C1 -C6 alkanoyl, C1 -C6 alkanoyloxy, C1 -C4 a...
10/12/1999
5952319Androgenic steroid compounds and a method of making and using the same
An androgenic steroid compound of the formula: ##STR1## wherein: X, Y, Z, R1, R2, R3, R5 and R6 are as defined herein....
09/14/1999
5922703Urethane-containing aminosteroid compounds
Urethane-containing amino steroids having the general chemical formula: ##STR1## wherein a, b, R1, R2, R3, R4, R14 and Z are as defined in the specification. Also disclosed are pharmaceutical com...
07/13/1999
5902888Synthesis of 6଱-functionalized estriol haptens and protein conjugates thereof
Disclosed are 6଱-derivatized estriol compounds which, when conjugated to a protein, are useful in the in vivo preparation of antibodies specific to estriol. When labeled with a detectable label, the estriol derivatives are useful as haptens in a com...
05/11/1999
5892069Estrogenic compounds as anti-mitotic agents
The application discloses methods of treating mammalian diseases characterized by abnormal cell mitosis by administering estradiol derivatives including those comprising colchicine or combretastatin A-4 structural motifs of the general formulae found belo...
04/06/1999
5750744Process for the preparation of 4-amino- 4-3-ketosteroids via 4-nitro- 4-3-ketosteroids
The present invention provides 4-nitro-Ɗ4 -3-ketosteroids, their use as steroid C17-20 lyase and 5଱-reductase inhibitors and to a novel process for preparing a compound of the formula: ##STR1## comprising sequentially: a)...
05/12/1998
5646316Bile acid inhibitors of metalloproteinase enzymes
The present invention relates to a bile acid derivative, which comprises a bile acid derivatized at the carboxyl group with a hydroxamic acid or hydroxamate ester. The carboxyl group in the bile acid compound can also be derivatized with an amino acid or ...
07/08/1997
5502044Fluorinated 4-aminoandrostadienone derivatives and process for their preparation
The present invention relates to a compound of formula (I) ##STR1## wherein (x) and (y) are single or double bonds; A is a ##STR2## R and R3 are hydrogen or acyl; R1 is hydrogen or fluorine; and wherein: when (y) is a single bon...
03/26/1996
54865114-amino-17ଲ-(cyclopropyloxy)androst-4-en-3-one, 4-amino-17ଲ-(cyclopropylamino)androst-4-en-3-one and related compounds as C17-20 lyase and 5଱-reductase
This invention is directed to 4-amino-17ଲ-(cyclopropyloxy)androst-4-en-3-one, 4-amino-17ଲ-(cyclopropylylamino)androst-4-en-3-one and related compounds, a process for their synthesis, a pharmaceutical composition having C17-20 l...
01/23/1996
5486603Oligonucleotide having enhanced binding affinity
The present invention relates to an oligonucleotide or analog thereof conjugated to a molecule comprising a structure, which structure (a) is of substantially fixed conformation; (b) contains, is directly attached to, or is attached to a carbon atom that ...
01/23/1996
5372996Method 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
5241090Process for the preparation of 4-amino-unsaturated androstanedione derivatives
4-amino-unsaturated androstanedione derivatives provided with aromatase inhibitory activity are obtained by hydrolyzation of a corresponding compound of formula II ##STR1##...
08/31/1993
52181104-amino-Ɗ4 -steroids and their use as 5଱-reductase inhibitors
The present invention relates to 4-azido-Ɗ4 -steroids which are useful as inhibitors of 5଱-reductase. The compounds are prepared by the reaction of an appropriate 4-azido steroid with triphenylphosphine in an aqueous inert solvent with h...
06/08/1993
51946029଱-hydroxy-17-methylene steroids, process for their preparation and their use in the preparation of corticosteroids
New 9଱-hydroxy-17-methylene steroids are prepared by the introduction of a substituted 17-methylene group in 9଱-hydroxyandrost-4-ene-3, 17-dione. The resulting compounds are useful starting compounds in the synthesis of corticosteroids....
03/16/1993
51890324-amino-Ɗ4,6 -steroids and their use as 5଱-reductase inhibitors
The present invention relates to 4-amino-Ɗ4,6 -steroids which are useful as inhibitors of 5଱-reductase. The compounds are prepared by the reaction of an appropriate 4,5-epoxy steroid with sodium azide in an inert solvent in the presence ...
02/23/1993
5143909Aminosteroids in a method for inhibiting C17-20 lyase
The present invention relates to a method for the inhibition of C17-20 lyase enzyme which comprises administering to a patient in need of such inhibition, an effective amount of certain 4-amino-17-(hydroxyalkyl or dihydroxyalkyl)steroids or the...
09/01/1992
51304244-amino-delta-4,6-steroids and their use as 5 alpha-reductase inhibitors
The present invention relates to 4-amino-Ɗ4,6 -steroids which are useful as inhibitors of 5଱-reductase. The compounds are prepared by the reaction of an appropriate 4,5-epoxy steroid with sodium azide in an inert solvent in the presence ...
07/14/1992
51208404-amino-4-ene-steroids and their use as 5଱-reductase inhibitors
The present invention relates to 4-amino-Ɗ4 -steroids which are useful as inhibitors of 5଱-reductase. The compounds are prepared by the reaction of an appropriate 4-azido steroid with triphenylphosphine in an aqueous inert solvent with h...
06/09/1992
509350214଱,17଱-dihydroxy-17ଲ-substituted steroids
A process for the preparation of novel 14଱, 17଱-dihydroxy-17ଲ-substituted steroids by reacting 14଱-hydroxy-17-oxo-steroids with metal organic compounds and the use of the said novel steroids in the production of 14଱, 17&...
03/03/1992
5087700Method of producing primary amines in high yields
A novel process for producing hindered and unhindered primary amines represented by the formula RNH2 and R*NH2 in high yields from novel intermediates RBMe2 or R*BMe2 wherein R is an organo group, R* is a chiral...
02/11/1992
5043332Novel 11ଲ-substituted -19-nor-steriods
Novel 19-nor-steroids of the formula ##STR1## wherein R1 is an organic group of 1 to 18 carbon atoms optionally containing at least one heteroatom with the atom immediately adjacent the 11-carbon atom being carbon, R2 is a hydro...
08/27/1991
5034548Steroid derivatives useful as hypocholesterolemics
Lanosterols substituted in the 14 and/or 15 position(s) which are active in inhibiting lanosta-8,24-dien-3ଲ-ol 14଱-methyl-demethylase activity, suppressing 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGR) activity, decreasing cholesterol...
07/23/1991
4988684Novel 4-alkylthio-steroids
A compound of the formula ##STR1## wherein R is selected from the group consisting of alkyl of 1 to 4 carbon atoms and alkenyl and alkynyl of 2 to 4 carbon atoms, R1 is alkyl of 1 to 6 carbon atoms unsubstituted or substituted with at leas...
01/29/1991
4954446Aromatic steroid 5-଱-reductase inhibitors
Invented are substituted acrylate analogues of steroidal synthetic compounds, pharmaceutial compositions containing the compounds, and methods of using these compounds to inhibit steroid 5-଱-reductase including using these compounds to reduce prosta...
09/04/1990
4937237Phosphinic acid substituted aromatic steroids as inhibitors of steroid 5-60 -reductase
Invented are phosphinic acid substituted analogues of steroidal synthetic compounds, pharamaceutical compositions containing these compounds, and methods of using these compounds to inhibit steroid 5-଱-reductase, including using these compounds to r...
06/26/1990
492011419-fluoro- or cyano-21-hydroxyprogesterone derivatives useful as 19-hydroxylase inhibitors
19-Fluoro- and cyano- substituted 21-hydroxyprogesterone derivatives and related compounds which are active as 19-hydroxylase inhibitors and useful as antihypertensive agents are described herein. The compounds are prepared using appropriate synthetic pat...
04/24/1990
1    
 
Sign InRegister
Username  
Password   
forgot password?