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Class 552/605 - Carbon or halogen bonded directly at the 6- or 7-position


Subclass of Class 552 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein carbon or halogen is bonded directly at
No. of patents: 25
Last issue date: 01/16/2001


NumberTitleIssue Date
6174665Hormone replacement therapy monitoring
The present invention provides methods for monitoring the effectiveness of hormone replacement therapy in a perimenopausal, early menopausal, or late menopausal woman, comprising testing for hormonal levels in a body fluid of the woman at intervals depend...
01/16/2001
5994333Pregnane and cholane steroids as neurochemical initiators of change in human hypothalamic function and related pharmaceutical compositions and methods
The invention relates to a method of altering hypothalamic function in an individual. The method comprises nasally administering a human vomeropherin, e.g. a pregnane or cholane steroid, or a pharmaceutical composition containing a vomeropherin, such that...
11/30/1999
582784214଱, 17଱-C2 -bridged norprogesterone derivatives
The invention describes 14,17-C2 -bridged steroids of general formula (I), ##STR1## wherein the various R groups are as defined in the specification, and wherein said steroids are, in contrast with the disclaimed compound 14,17-ethano...
10/27/1998
5519153Medrogestone production
A process for the production of 6,17଱-dimethylpregna-4,6-diene-3,20-dione which comprises isolating 3ଲ,5଱, 6ଲ-trihydroxy- 6଱,17଱- dimethylpregnan-20-one monomethanolate from the solution of a Grignard reaction prod...
05/21/1996
5352808Process for steroid preparation
A process for the preparation of a compound of the formula ##STR1## wherein R1 is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms optionally substituted by halogen or a nitrogen or oxygen function and alkenyl a...
10/04/1994
5140106Process for the production of 3-deoxy-4-ene steroids
A process for the production of 3-deoxy-4-ene steroids of the general formula I ##STR1## is described, in which R1, R2 and R3 mean a hydrogen atom or a methyl group, R4 represents a lower alkyl group, a phe...
08/18/1992
5086047Novel steroids
A compound selected from the group consisting of a compound of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl, alkylthio and haloalkyl of 1 to 6 carbon atoms, alkenyl and alkynyl of 2 to 6 carbon atoms, option...
02/04/1992
507354811 ଲ-substituted progesterone analogs
A 11ଲ-aryl-19-norprogesterone steroid of the formula: ##STR1## wherein (i) R1 is H, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, OH, OC(O)CH3, or OC(O)R5 , wherein R5 is C2...
12/17/1991
495449011 ଲ-substituted progesterone analogs
A 11ଲ-aryl-19-norprogesterone steroid of the formula: ##STR1## wherein (i) R1 is H, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, OH, OC(O)CH3, or OC(O)R5, wherein R5 is C2-...
09/04/1990
4913852Compounds obtained from the associative synthesis of sulfur-containing or sulfur-free amino acids with pregnane derivatives
Compounds obtained from the associative synthesis of sulfur-containing or sulfur-free amino acids with derivatives of Ɗ-4-pregnene-3,20-dione or with derivatives of Ɗ-1,4-pregnadiene-3,20-dione of the general formulas (I), (II) and (III), having glucoco...
04/03/1990
4871724Novel 11-aryloestrane and 11-arylpregnane derivatives
The present invention is concerned with 11-aryloestrane and 11-arylpregnane derivatives, characterized in that these derivatives have the following structure: ##STR1## wherein R1 is an aryl group with an ##STR2## group as substit...
10/03/1989
487006911ଲ-alkynyl-estrenes and -estradienes, their production and pharmaceutical preparations containing them
11ଲ-substituted steroids of the formula ##STR1## wherein A and B together represent a second bond between the 6-position and 7-position carbon atoms, or, respectively, are each H; X is O, two H atoms or hydroximino; Z is the residue of a pentagonal ...
09/26/1989
4512986Progrestationally active steroids
Novel steroids having the formula ##STR1## wherein R1 is selected from the group consisting of methyl, ethyl, and propyl; R2 is selected from the group consisting of H and methyl; R3 is selected from the group consisting o...
04/23/1985
450170120-Isocyano-Ɗ17(20) -steroids
Novel 20-isocyano-Ɗ17(20) -steroids of the formula ##STR1## wherein R1 is selected from the group consisting of (1) hydrogen, (2) alkyl of 1 to 4 carbon atoms optionally substituted with a member of the group consisting of halo...
02/26/1985
4440684Process for the preparation of 6-methyl-Ɗ4,6 -3-keto steroids
A process for preparing 6-methyl-Ɗ4,6 -3-keto steroids of the formula ##STR1## comprises reacting a corresponding Ɗ4 -3-keto steroid with methoxymethyl acetate (CH3 --O--CH2 --OAc) in an inert solvent ...
04/03/1984
4424159Process for the synthesis of the hydroxyacetyl side-chain of steroids of the pregnane type, novel 21-hydroxy-20-oxo-17଱-pregnane compounds and pharmaceutical preparations containing them
The present invention relates to a novel general process for synthesizing a ଱- or ଲ-oriented hydroxyacetyl side chain of steroids of the pregnane type, which comprises treating a corresponding steroid carbaldehyde in succession with formaldehy...
01/03/1984
4404141Ɗ9(11) - And Ɗ16 -21-chloro-20-keto steroids of the pregnane and D-homopregnane series, their preparation and use as intermediates for the synthesis of highly effective corticoids
Ɗ16 - and Ɗ17 -21-chloro-20-keto steroids of the formula ##STR1## wherein n is 1 or 2, C1 C2 and C9 C11 represent a CC-single or CC-double bond, R1 is H or OH, R2
09/13/1983
4323511Steroid derivatives and their use in radioimmunoassays
Radiolabeled steroid derivatives having the formula ##STR1## wherein St is a 6-dehydro derivative of a 3-oxo-4,5-dehydro steroid intended for radioimmunoassay, said steroid being saturated in the 1,2-position; R is hydrogen or alkyl of 1 to 3 carbon ...
04/06/1982
4322349Process for preparing 6-methylene steroids
A process for preparing a 6-methylene-Ɗ4 -3-keto steroid of the formula ##STR1## wherein R is hydrogen, alkoxy of up to 6 carbon atoms or acyloxy of up to 6 carbon atoms wherein the acyl group is that of a carboxylic acid, and R' is the C...
03/30/1982
4216159Synthesis of 16-unsaturated pregnanes from 17-keto steroids
17-Keto steroids (I) in their protected form (IIa or IIb) are reacted with a metalated olefin (VI) to give a 21-aldehyde (IV) which is readily transformed to a 16-unsaturated pregnane (V) which is useful in the production of commercially important substit...
08/05/1980
4172075Fluoro-steroids and processes for their manufacture
11,12-Unsaturated 9଱-fluorosteroids comprising a new class of steroid compounds are obtained by a novel process, wherein a corresponding 9଱-fluoro-11ଲ-hydroxysteroid is dehydrated with a reagent of the formula F3 SX in which X...
10/23/1979
41247077଱-Halogeno-3,20-dioxo-1,4-pregnadienes, methods for their manufacture, their use as anti-inflammatory agents, and pharmaceutical formulations useful therefor
Novel 3,20-dioxo-7଱-halogeno-1,4-pregnadienes are described and their use as anti-inflammatory agents. Preferred are 7଱-bromo- and 7଱-chloro- derivatives, particularly 7଱-bromo- and 7଱-chloro-1,4-pregnadienes-11ଲ,17�...
11/07/1978
4018774Steroidal [16଱,17-d]isoxazolidines
Novel steroids having the structure ##STR1## and the 1,2-dehydro derivatives thereof, wherein R1 is hydrogen, hydroxy, alkanoyloxy, fluorine, chlorine, or bromine; R2 is alkyl or aryl; R3 is alkyl, aryl, alkanoyl, aro...
04/19/1977
4018757Steroidal[16଱,17-c][2H]pyrroles
Steroids having the structure ##STR1## and the 1,2-dehydro derivatives thereof, wherein R1 is hydrogen, hydroxy, ##STR2## fluorine, chlorine, or bromine; R2 is alkyl or aryl; R3 is aryl, cyano, alkylcarbonyl...
04/19/1977
393379911ଲ-Halo-9,12-unsubstituted-C19 -steroids
11ଲ-Halo-9଱,12-unsubstituted-C19 -steroids having hormonal activity and a process for preparing same by reacting the corresponding 11଱-hydroxy steroid with a compound of the formula ##EQU1## where R1 and R...
01/20/1976
 
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