| Patents for C07J 73 - Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by substitution of one or two carbon atoms by hetero atoms (1,160) |
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| 11/10/1992 | US5162332 Selected 17 β-polyaroyl-4-aza-5 α-androst-1-en-3-ones as steroidal reductase inhibitors |
| 10/15/1992 | WO1992017489A1 Novel oxa- or azasteroid derivative |
| 10/15/1992 | CA2107102A1 Novel oxa- or azasteroid derivatives |
| 10/13/1992 | US5155107 17β-substituted-4-aza-5α-androstan-3-one derivatives and process for their preparation |
| 09/29/1992 | US5151430 Enzyme inhibitors, skin disorders and antiandrogens |
| 09/29/1992 | US5151429 Enzyme inhibitors, skin disorders and antiandrogens |
| 09/23/1992 | EP0504711A1 Compound UCA1064-B |
| 08/18/1992 | US5140022 3-acyclic or cyclicaminomethyl-17a-lower-alkyl-17a-aza-d-homo-5-alpha-androstanes |
| 08/11/1992 | US5138063 17β-methoxycarbonyl-4-aza-androsten-1-en-3-ones |
| 06/24/1992 | CN1062145A Azasteroid compounds for treatment of prostatic hypertrophy, their preparation and use |
| 06/09/1992 | US5120847 Chemical intermediate which can be dehydrohalogenation |
| 06/09/1992 | US5120742 Androstanes as enzyme inhibitors |
| 06/04/1992 | DE4038128A1 8-en-19, 11(beta)-ueberbrueckte steroide, deren herstellung und diese enthaltende pharmazeutische praeparate 8-ene-19, 11 (beta) -ueberbrueckte steroids, their production and pharmaceutical compositions containing them |
| 05/28/1992 | WO1992009618A1 8-ENE-19, 11β-BRIDGED STEROIDS, THEIR PREPARATION AND PHARMACEUTICAL FORMULATIONS CONTAINING THEM |
| 05/28/1992 | CA2097079A1 8-ene-19, 11.bet.beta.-bridged steroids, their preparation and pharma ceutical formulations containing them |
| 05/26/1992 | US5116983 Dehydrogenation process intermediates |
| 05/20/1992 | EP0485392A1 Androgen derivatives for use in the inhibition of sex steroid activity |
| 05/06/1992 | EP0484094A2 Azasteroid compounds for the treatment of prostatic hypertrophy, their preparation and use |
| 05/05/1992 | US5110939 Antiandrogens |
| 04/08/1992 | EP0478910A2 3-Substituted-aminomethyl-3-substituted-oxy-17A-methyl-17A-lower-alkyl-17A-aza-d-homo-5-alpha-androstanes |
| 04/02/1992 | CA2046527A1 3-substituted-aminomethyl-3-substituted-oxy-17a-methyl-17a-lower-alkyl-17a-aza-d-homo-5-alpha androstanes |
| 04/01/1992 | EP0478068A2 New process for making 17-beta alkanoyl 3-oxo-4-aza-5-alpha-androst-1-enes |
| 04/01/1992 | EP0478066A2 New process for making 3-oxo-4-aza-androst-1-ene 17beta-ketones |
| 04/01/1992 | EP0478065A2 New intermediate for making 3-oxo-4-aza-androst-1-ene 17beta-ketones |
| 03/25/1992 | CA2050824A1 Process for making 3-oxo-4-aza-androst-1-ene 17-.beta.-ketones |
| 03/25/1992 | CA2050821A1 Process for making 17-.beta. alkanoyl 3-oxo-4-aza-5-alpha-androst- 1-enes |
| 03/24/1992 | US5098908 Drugs for treatment of acne, seborrhea, female hirsurism and benign prostatic hypertropy |
| 03/18/1992 | EP0474666A1 Oxidative preparation of a-nor-17 beta-carboxy-3,5-secoandrostan-5-one-3 oic acid. |
| 03/04/1992 | EP0473226A2 Trialkysilyl trifluoromethanesulfonate mediated functionalization of 4-aza-5alpha-androstan-3-one steroids |
| 03/04/1992 | EP0473225A2 Process for iodinating or brominating the alpha-methylenic carbon of a secondary amide |
| 02/25/1992 | US5091534 Electrophilic substitution |
| 01/28/1992 | US5084574 Dehydrogenation process |
| 01/09/1992 | WO1992000010A1 Method of treating human prostatic adenocarcinoma |
| 12/27/1991 | EP0462668A2 New 17beta-aminobenzoyl-4-aza-5alpha-androst-1-en-3-ones as benign prostatic hypertrophy agents |
| 12/27/1991 | EP0462665A2 Selected 17beta-polyaroyl-4-aza-5alpha-androst-1-en-3-ones as steroidal reductase inhibitors |
| 12/27/1991 | EP0462664A2 Specific 17beta-thiobenzoyl-4-aza-5alpha-androst-1-en-3-ones as antiandrogenic agents |
| 12/27/1991 | EP0462662A2 17beta-N-monosubstituted adamantyl/norbornanyl carbamoyl-4-aza-5alpha-androst-1-en-3-ones and androstan-3-ones |
| 12/27/1991 | EP0462661A2 Novel 17beta-hydroxybenzoyl-4-aza-5alpha-androst-1-en-3-ones as testosterone reductase inhibitors |
| 12/21/1991 | CA2058920A1 17.beta.-n-monosubstituted adamantyl/carbamoyl-4-aza-5.alpha.-androst-1-en-3-ones and androstan-3-ones as 5.alpha.-reductase |
| 12/21/1991 | CA2044922A1 17.beta.-hydroxybenzoyl-4-aza-5.alpha.-androst-1-en-3-ones as testoste rone reductase inhibitors |
| 12/21/1991 | CA2044921A1 Specific 17 .beta.-thiobenzoyl-4-aza-5 .alpha.-androst-1-en-3-ones as antiandrogenic agents |
| 12/21/1991 | CA2044914A1 17.beta.-aminobenzoyl-4-5 .alpha.-androst-1-en-3-ones as benign prostatic hypertrophy agents |
| 12/21/1991 | CA2044905A1 Selected 17 .beta.-polyaroyl-4-aza-5 .alpha.-androst-1-en-3-ones as steroidal reductase inhibitors |
| 11/28/1991 | WO1991012206A3 Aromatase-inhibiting steroids |
| 10/29/1991 | US5061803 Process for making 17-beta alkanoyl 3-oxo-4-aza-5-α-androst-1-enes |
| 10/29/1991 | US5061802 17β-aminobenzoyl-4-aza-5α-androst-1-en-3-ones as benign prostatic hypertrophy agents |
| 10/29/1991 | US5061801 Intermediate for making 3-oxo-4-aza-androst-1-ene 17β-ketones |
| 09/25/1991 | CN1054771A Process for preparation of 17beta-substituted-4-aza-5alpha-androstan-3-one derivatives |
| 09/17/1991 | US5049562 Enzyme inhibitors, antiandrogens |
| 09/02/1991 | WO1991013903A1 Heterocyclic steroid compounds |
| 09/02/1991 | CA2077680A1 Heterocyclic steroid compounds |
| 08/22/1991 | WO1991012206A2 Aromatase-inhibiting steroids |
| 08/10/1991 | WO1991012261A1 17β-SUBSTITUTED-4-AZA-5α-ANDROSTAN-3-ONE DERIVATIVES AND PROCESS FOR THEIR PREPARATION |
| 08/10/1991 | CA2049318A1 17.beta.-substituted-4-aza-5.alpha.-androstan-3-one derivatives and process for their preparation |
| 07/16/1991 | US5032586 Enzyme inhibitors, steroid hormones |
| 06/04/1991 | US5021575 Treating with oxalyl chloride, brominating, dehydrobromination then deprotecting to yield isomers |
| 06/04/1991 | CA1284636C 17.beta.-N-MONOSUBSTITUTED-CARBAMOYL-4-AZA-5.alpha.-ANDROSTAN-3-ONES |
| 05/22/1991 | EP0428366A2 Method for introducing a 1,2 double bond into azasteroids |
| 04/16/1991 | CA1282976C Increasing the yield of cereals by means of brassinolide derivatives |
| 02/27/1991 | EP0414529A2 7-Keto- and 7-Hydroxy-androsta-3,5-diene-3-carboxylic acid derivatives |
| 02/27/1991 | EP0414491A2 17 Beta-acyl-4-aza-5 alpha-androst-1-ene-3-ones as 5 alpha-reductase inhibitors |
| 02/27/1991 | EP0414490A2 17 Beta-acyl-4-aza-5 alpha-androst-1-ene-3-one as 5 alpha-reductase inhibitors |
| 02/25/1991 | CA2023609A1 7-keto or hydroxy 3,5-diene steroids as inhibitors of steroid 5--reductase |
| 02/22/1991 | CA2023158A1 17 beta-acyl-4-aza-5 alpha-androst-1-ene-3-ones as 5 alpha-reductase inhibitors |
| 02/22/1991 | CA2023157A1 17 beta-acyl-4-aza-5 alpha-androst-1-ene-3-ones as 5 alpha-reductase inhibitors |
| 02/21/1991 | WO1991001991A1 New topically active steroidal anti-inflammatory agents |
| 01/31/1991 | CA2000369A1 Topically active steroidal anti-inflammatory agents |
| 01/24/1991 | WO1991000732A1 Androgen derivatives for use in the inhibition of sex steroid activity |
| 01/24/1991 | CA2063378A1 Androgen derivatives for use in the inhibition of sex steroid activity |
| 12/01/1990 | WO1990015045A1 Oxidative preparation of a-nor-17 beta-carboxy-3,5-secoandrostan-5-one-3 oic acid |
| 10/09/1990 | US4961775 Brassinosteroid derivatives and plant growth regulators |
| 09/25/1990 | US4959097 23-Phenylsteroids |
| 09/25/1990 | US4959093 Steroid, brassinolide derivative |
| 07/03/1990 | US4939247 Gamma-lactone derivatives and process of preparing same |
| 05/09/1990 | EP0367502A1 Methods of synthesizing benign prostatic hypertrophic agents |
| 04/03/1990 | US4914106 Controlling androgen-dependent diseases; preventing abortion; contraception |
| 03/27/1990 | US4912097 Novel 11 β-alkynylphenyl-10-nor-steroids |
| 03/20/1990 | US4910192 Topically active steroidal anti-inflammatory agents |
| 02/14/1990 | CN1039594A Method for synthesizing epi-rape lactone and likes |
| 12/19/1989 | US4888336 Decrease dihydrotestosterone activity |
| 12/12/1989 | US4886544 Plant growth regulators; alkenylation, oxidation, hydrolysis, acylation, lactonization |
| 11/29/1989 | EP0245170B1 19-nor or 19-nor d-homo steroids substituted at position 11 beta by a phenyl group substituted by an alkynyl group, process for their preparation, their use in medicaments and pharmaceutical compositions containing them |
| 10/17/1989 | US4874551 δ-lactone derivatives and process of preparing same |
| 08/29/1989 | US4861875 3α,5-cyclo-22,23-dihydroxy-5α-steroid compounds |
| 08/22/1989 | US4859681 17 α-Acyl-4-aza-5a-androst-1-en-3-ones as 5 alpha-reductase inhibitors |
| 07/19/1989 | CN1033998A "22r, 23r,24s)-22,23-epoxy-2 alpha, 3 alpha-isopropylidenedioxy-beta-homo-7-oxa-5alpha stigmastan-6-one, process for preparation thereof and plant growth regulating composition contg. same |
| 07/05/1989 | EP0322639A1 (22R,23R,24S)-22,23-Epoxy-2 alpha, 3 alpha-isopropylidenedioxy-B-homo-7-oxa-5 alpha-stigmastan-6-one, process for preparation thereof and plant growth regulating composition containing the same |
| 07/04/1989 | US4845104 Oxidized analogs of 17β-N-monosubstituted-carbamoyl-4-aza-5-α-androstan-3-ones |
| 06/06/1989 | CA1255293A1 2-oxa- or -aza-pregnane compounds |
| 05/24/1989 | CN1033057A Brassinosteroid derivatives and plant growth regulators |
| 05/17/1989 | EP0315921A1 Brassinosteroid derivatives and plant growth regulators |
| 05/03/1989 | EP0314199A1 17 Beta-substituted-4-aza-5 alpha-androstenones and their use as 5 alpha-reductase inhibitors |
| 04/18/1989 | US4822803 Benzofuran 2-carboxylic acid hydrazides useful as inhibitors of leukotriene biosynthesis |
| 01/31/1989 | US4801607 Antiviral furanoditerpenoids |
| 01/11/1989 | EP0298652A2 Dehydrogenation process and intermediates |
| 11/15/1988 | US4785103 Antiandrogens |
| 10/05/1988 | EP0285301A2 Antitumor and antiviral furanoditerpenoids |
| 10/05/1988 | CN88101369A Preparation of 23-phenylsteroids and uses |
| 09/21/1988 | EP0282984A1 23-Phenylsteroids |
| 08/30/1988 | US4767442 Increasing the yield of cereals by means of brassinolide derivatives |