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JPS53130649A |
PURPOSE: To prepare 4-ene-3-oxosteroid useful as an intermediate of steroid medicine in high yield, by contacting a crude objective compound containing organic rhodium complex which is used as a reduction catlayst, with an alkaline aqueo...
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JPS53130650A |
PURPOSE: To separate an organic rhodium complex used as a hydrogenation catalyst, from crude steroid containing the complex, by the successive treatments comprising oxidation with peroxide, reduction, and adsorption to activated charcoal.
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JPS53127454A |
PURPOSE: To obtain title compounds useful as intermediate for manufacturing steroid type pharmaceuticals by hydrogenation of 1,5-diene-3-oxosteroids in the presence of heterogeneous hydrogenation catalysts composed of the 8th group noble...
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JPS53127452A |
PURPOSE: To separate organometallic complexes contained in 4-ene-3-oxosteroids by the following sequential step^ydrogenation of 1,4-dienes to form title compounds useful as intermediate for pharmaceuticals, conversion into C3-enamine com...
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JPS5339425B2 |
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JPS5337845B2 |
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JPS5331155B2 |
Steroidal 19-nor-3-hydroxy-1, 3, 5(10)-trienes are produced by a process which comprises admixing a preheated hydrocarbon and a solution of a steroidal 10-methyl-1, 4-diene-3-one dissolved or suspended in a hydrocarbon, and then pyrolyzi...
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JPS5328963B2 |
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JPS5327267B2 |
A process for producing a steroid ether which comprises admixing an alkali, a reactant steroid having a hydroxyl group attached directly to an aromatic ring in the steroid nucleus, and a dialkyl sulfate in the presence of at least one hy...
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JPS5324417B1 |
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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JPS538694B2 |
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JPS532867B1 |
Cyclic acetals or ketals of cardioglycosides derived from k-strophanthidin or strophanthidol are more readily absorbed by the stomach and intestine than the parent cardioglycoside. The acetals are produced by reaction of the parent cardi...
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JPS52102259A |
Total synthesis of known progestationally active steroidal materials. The steroids can be synthesized depending on the particular starting reactants selected by employing as intermediates bicyclic compounds of the formula WHEREIN M IS AN...
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JPS5228794B1 |
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JPS5227157B1 |
Total synthesis of known progestationally active steroidal materials. The steroids can be synthesized depending on the particular starting reactants selected by employing as intermediates bicyclic compounds of the formula WHEREIN M IS AN...
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JPS5227158B1 |
1,146,711. Hydrolysis of steroidal acetals and ketals. SYNTEX CORP. 27 May, 1966 [2 May, 1965; 1 June, 1965], No. 23798/66. Headings C2C and C2U. Steroid cyclic acetals and ketals are hydrolysed to the corresponding free diols by treatme...
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JPS5283445A |
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JPS5224014B2 |
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JPS5224013B1 |
1,202,521. 9α - Unsubstituted - 11# - chloro - 19 - nor - steroids. GLAXO LABORATORIES Ltd. 8 Aug., 1967 [29 July, 1966; 18 May, 1967], Nos. 34275/66 and 23066/67. Heading C2U. [Also in Division A5] Novel 9α - unsubstituted 11# - chlor...
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JPS5224018B2 |
New esters are obtained by the acylation of 3,30-dihydroxyolean-11,13(18)-diene with unsaturated alcohols. The new compounds have valuable anti-inflammatory properties.
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JPS5224015B1 |
1,271,207. 6 - Aminomethyl - steroids. UPJOHN CO. 21 Oct., 1970 [19 Nov., 1969], No. 50029/70. Headings C2C and C2U. 6-Aminomethyl steroids of the partial formula where R1 is C 1-12 alkyl or hydroxyalkyl, C 3-8 cycloalkyl, C 6-14 aryl op...
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JPS5224017B1 |
1,258,023. A-Homo-steroids. CIBA-GEIGY A.G. 27 Jan., 1970 [30 Jan., 1969; 22 Dec., 1969], No. 3926/70. Heading C2C. Novel A-homo-steroids of the formula (wherein R 1 is a free or ketalized oxo group, or a #-positioned free, esterified or...
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JPS5215592B1 |
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JPS5210870B1 |
1,255,950. 18-Methylene steroids. CIBAGEIGY A.G. 20 Dec., 1968 [22 Dec., 1967; 25 Nov., 1968], No. 60763/68. Heading C2U. 18-Methylene steroids are prepared (1) by heating N-oxides of tertiary 18-aminomethyl steroids; or (2) by splitting...
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JPS5217401A |
The process for removing a secondary hydroxyl group from an organic compound having at least one secondary hydroxyl group and having any amino groups protected, comprises the reaction of a reactive ester of said secondary hydroxyl group ...
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JPS5214761A |
Novel 11,12-unsaturated 9 alpha -fluorosteroids, especially those of the androstane and pregnane series, with the following constitution in rings B and C it being possible for all the substituents customary in the known pharmacological a...
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JPS5132626B1 |
Cpds. of partial general formulae I - IV where R'=OH or Oacyl and R2 = H or R'+R2 together = O R3 = H, beta-OH, beta-Oacyl, beta-halogen or alpha-halogen R4 = H or R3+R4 together = O R5 = halogen, OH or Oacyl R6 = H or R5+R6 together = a...
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JPS51100066A |
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JPS51100068A |
1514621 13-Ethynyl and 13-(2-halovinyl)- steroids CIBA-GEIGY AG 27 Jan 1976 [30 Jan 1975] 03072/76 Heading C2U Novel steroids of the formulµ wherein St is the remaining part of the steroid skeleton which is optionally substituted and wh...
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JPS51100065A |
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JPS51100067A |
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JPS5130068B1 |
Acylated helveticoside derivs.: R1,R2 = 1-4C acyl opt. substd. by halogen or alkoxy, alkenyloxy or acyloxy one of R1 and R2 may be H R3 = CHO or CH2OX X = H or 1-4C acyl opt. substd. by halogen or alkoxy, alkenyloxy or acyloxy Except tha...
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JPS5123484B2 |
Process for converting secondary and tertiary acetylenic carbinols to the corresponding alpha,beta-unsaturated carbonyl compounds by rearranging the carbinol with (trilower alkyl-, tricycloalkyl-, triaryl- or triarylalkyl-siloxy) vanadiu...
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JPS5176256A |
Polycyclic cpds. are prepd. by (a) subjecting a polyene cpd. of formula (I), (II) or (III): (where the chain is opt. substd. by 1-3 alkyl gps.; X is H, OH, SH, 1-12C hydrocarbyloxy, 1-12C hydrocarbylthio, a 1-12C carboxy ester gp., 3-6C ...
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JPS5111111B1 |
1307902 3# - Hydroxy - #5(10)-steroids SCHERING AG 20 March 1970 [20 Mareh 1969] 13608/70 Addition to 1247037 Heading C2U Title steroids of the 19-norpregnene or estrene series are prepared by reduction of 3-keto- #5(10)-steroids using h...
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JPS5111112B1 |
1325004 Steroid enolization and halogenation RESEARCH INSTITUTE FOR MEDICINE & CHEMISTRY Inc 24 Nov 1970 [24 Nov 1969] 57425/69 Heading C2U A steroid 1,4-diene-3,11-dione is selectively enolized to a 3- or 9(11)-alkali metal enolate ther...
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JPS5136447A |
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JPS5134142A |
A novel group of 18,18-difluorosteroids of the general formula (I) wherein St, R1 and R2 have the meanings given hereinafter is produced by a chemically novel process characterized in that a corresponding 18-oxo compound is treated with ...
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JPS517665B1 |
1355454 Steroids; 4,5-secosteroids ROUSSEL UCLAF 17 March 1972 [19 March 1971] 12579/72 Headings C2C and C2U The invention comprises compounds of Formulae III, IV and V and the preparation therefrom of steroids of Formula I (R is C 1-4 a...
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JPS5126866A |
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JPS516148B1 |
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JPS514992B1 |
1,231,296. 19-Nor-steroids. MERK PATENT G.m.b.H. 28 Aug., 1969 [25 Oct., 1968], No. 42812/69. Heading C2U. [Also in Division A5] 19 - Nor - 3 - keto - #4 - steroids are prepared by reacting 19-hydroxy-3-keto-#4-steroids with secondary am...
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JPS512460B1 |
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JPS514102A |
Saturated organic compounds containing a hydrogen atom bound to a tertiary carbon atom may be electrophilically fluorinated by reaction with an electrophilic fluorinating agent such as molecular fluorine or trifluoromethyl hypofluorite u...
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JPS50157351A |
Compositions are provided as well as methods for preparing the compositions which serve as cyclization precursors for the preparation of C-11 alkenyl substituted steroids and nor-steroids. The alkenyl group may be converted after cycliza...
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JPS5037663B1 |
21-Fluoro-steroids of the partial formula (I): (where R is H and R1 and R2 are H or hydrocarbyl or R1, R2 is a double bond) are prepd. in good yields by reacting steroids of partial formula (II) (where Z is H or an esterified carboxyl gp...
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JPS5037662B1 |
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JPS5034555B1 |
The invention comprises a 10b -n-propyl steroid of the general formula in which A represents the oxygen atom of a keto group and B and C together represent a double bond and D represents a hydrogen atom or A either re...
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JPS5031155B2 |
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JPS50123655A |
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