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Class Information
Number: 540/4
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium or tellurium) or nitrogen as the only ring hetero atoms > Cyclopentanohydrophenanthrene ring system containing > Boron or silicon containing
Description: Compounds which contain boron or silicon.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6620801 |
17.beta.-amino and hydroxylamino-11.beta.-arylsteroids and their derivatives having agonist or antagonist hormonal properties |
Sep. 16, 2003 |
| 6489081 |
Organosilyl radical generators and their applications |
Dec. 3, 2002 |
| 6262042 |
17.beta.-amino and hydroxylamino-11.beta.-arylsteroids and their derivatives having agonist or antagonist hormonal properties |
Jul. 17, 2001 |
| 6133280 |
Androgen synthesis inhibitors |
Oct. 17, 2000 |
| 5808059 |
Matrix-supported sapphyrins |
Sep. 15, 1998 |
| 5792758 |
Steroid nitrite ester derivatives useful as anti-inflammatory drugs |
Aug. 11, 1998 |
| 5756722 |
Intermediates for the preparation of .DELTA..sup.4,9(11),17(20) -pregnatriene-3-ones |
May. 26, 1998 |
| 5741795 |
16-substituted-6-aza-androsten-4-ene-3-ones as 5-.alpha.-reductase inhibitors |
Apr. 21, 1998 |
| 5641767 |
Modified bile acids process for their preparation and their use |
Jun. 24, 1997 |
| 5401864 |
Process for preparing 21 acyloxy-.DELTA.4,9(11),16 pregnatrienes 3-20-dione |
Mar. 28, 1995 |
| 5372996 |
Method of treatment of androgen-related diseases |
Dec. 13, 1994 |
| 5358940 |
Chelate complexes and processes for their preparation |
Oct. 25, 1994 |
| 5359055 |
Pregnane derivatives and processes for production thereof |
Oct. 25, 1994 |
| 5359054 |
Initial compounds for the production of 10.beta.-H-steroids and a process for the production of these initial compounds |
Oct. 25, 1994 |
| 5352781 |
Process for precursors to calcitriol and related compounds |
Oct. 4, 1994 |
| 5336686 |
17 Methylene lactones of steroids |
Aug. 9, 1994 |
| 5232915 |
9.alpha.-hydroxy-19,11.beta.-bridged steroids, their production and pharmaceutical preparations containing these steroids |
Aug. 3, 1993 |
| 5218109 |
Steroid compounds |
Jun. 8, 1993 |
| 5187273 |
.DELTA..sup.4,9(11),17(20) -pregnatriene-3-ones |
Feb. 16, 1993 |
| 5182381 |
Intermediates for 3-keto-19-nor-.DELTA..sup.4,9 -steroids |
Jan. 26, 1993 |
| 5144032 |
Preparation of tertiary amine borane adducts |
Sep. 1, 1992 |
| 5010202 |
Novel silicon-organic compounds, containing an oxazolidine group |
Apr. 23, 1991 |
| 4977255 |
Steroidal 17.alpha.-silyl ethers and process to corticoids and progesterones |
Dec. 11, 1990 |
| 4977291 |
Process of producing a silanic or siloxanic compound containing at least one cycloalkyl ring |
Dec. 11, 1990 |
| 4975536 |
Conversion of a delta16-steroid to a delta17(20)-20-silyl ether |
Dec. 4, 1990 |
| 4954414 |
Photosensitive composition containing a transition metal coordination complex cation and a borate anion and photosensitive materials employing the same |
Sep. 4, 1990 |
| 4929395 |
16.alpha.-methylation process |
May. 29, 1990 |
| 4921638 |
17.beta.-cyano-9.alpha.,17.alpha.-dihydroxyandrost-4-en-3-one |
May. 1, 1990 |
| 4912097 |
Novel 11 .beta.-alkynylphenyl-10-nor-steroids |
Mar. 27, 1990 |
| 4898694 |
17-Hydroxy-steroids |
Feb. 6, 1990 |
| 4891426 |
16.alpha.-methyl-17.alpha. 20-epoxysteroid and process |
Jan. 2, 1990 |
| 4758383 |
Ergosta-1,5,7,22-tetraen-3.beta.-ol and its use as an intermediate for 1.alpha.-hydroxy vitamin D.sub.2 |
Jul. 19, 1988 |
| 4634695 |
Steroid derivatives |
Jan. 6, 1987 |
| 4614616 |
Process for preparing 3.beta.7.beta.-dihydroxy-.DELTA..sup.5 -steroids |
Sep. 30, 1986 |
| 4599330 |
Method of treating milk fever |
Jul. 8, 1986 |
| 4568492 |
.DELTA.16-20-Keto steroid conversion to 17.alpha.-hydroxy-20-keto steroids |
Feb. 4, 1986 |
| 4550163 |
Ligand analog-irreversible enzyme inhibitor conjugates |
Oct. 29, 1985 |
| 4548748 |
Cyanohydrin process |
Oct. 22, 1985 |
| 4519946 |
Steroids |
May. 28, 1985 |
| 4500461 |
Cyanohydrin process |
Feb. 19, 1985 |
| 4447424 |
Steroid derivatives |
May. 8, 1984 |
| 4421690 |
Process for the preparation of 24,24-difluoro-1.alpha.,25-dihydroxy vitamin D.sub.3 and intermediates obtained therefrom |
Dec. 20, 1983 |
| 4407753 |
8.alpha.-Oestra-1,3,5(10)-triene derivatives, processes for their preparation and pharmaceutical compositions |
Oct. 4, 1983 |
| 4401596 |
Novel 17-oxazoline-steroids |
Aug. 30, 1983 |
| 4386085 |
Novel steroids |
May. 31, 1983 |
| 4357279 |
Preparation of corticoids from 17-keto steroids |
Nov. 2, 1982 |
| 4336193 |
Process for preparing vitamin D-lactones |
Jun. 22, 1982 |
| 4322349 |
Process for preparing 6-methylene steroids |
Mar. 30, 1982 |
| 4287129 |
Synthesis of 1.alpha.-hydroxy-7-dehydrosteroids |
Sep. 1, 1981 |
| 4272530 |
.DELTA..sup.1,3,5(10) -Estratrienes |
Jun. 9, 1981 |
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