5α-androst-16-en-3-one
A
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
With sodium tetrahydroborate In tetrahydrofuran; methanol for 2h; Ambient temperature; | A 77% B 2% |
With aluminum isopropoxide; isopropyl alcohol Isolierung ueber die in wss. Aethanol schwer loesliche Verbindung mit Digitonin; | |
With ethanol; water; lithium tri-sec-butyl(hydrido)borate 1.) THF, r.t., 3 h; 2.) -55 deg C; Yield given. Multistep reaction. Yields of byproduct given; |
17-iodo-3β-hydroxy-5α-androstan-16-ene
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
With diethylene glycol monoethyl ether sodium salt In 1,4-dioxane at 100℃; for 92h; Reagent/catalyst; Temperature; Solvent; Inert atmosphere; | 75.4% |
With ethanol; sodium Heating; | |
With sodium In ethanol Reflux; |
16R-bromopregnane-3S,20S-diol
B
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
With potassium tert-butylate In tert-butyl alcohol at 60℃; for 18h; | A 65% B 30% |
With potassium tert-butylate In tert-butyl alcohol at 82℃; for 5h; | A 46% B 52% |
Conditions | Yield |
---|---|
Stage #1: Epiandrosterone With toluene-4-sulfonic acid hydrazide In ethanol for 2h; Bamford-Stevens Decomposition; Reflux; Stage #2: With methyllithium In diethyl ether at 22℃; for 16.5h; Bamford-Stevens Decomposition; | 29% |
5α-androst-16-en-3-one
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride; diethyl ether |
5α-androst-16-en-3-one
aluminum isopropoxide
isopropyl alcohol
A
5α-androst-16-en-3β-ol
5α-androst-16-en-3β-yl acetate
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
With potassium hydroxide In methanol |
17-bromo-3β-hydroxy-5α-androstan-16-ene
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
With ethanol; sodium Heating; |
17-chloro-3β-hydroxy-5α-androstan-16-ene
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
With sodium amide In diethyl ether | |
With ethanol; sodium | |
With ethanol; sodium Heating; |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 92 percent / pyridine / 24 h / 0 °C 2: 87 percent / toluene / 480 °C 3: 1.) lithium tris(1,2-dimethylpropyl)hydridoborate; 2.) water, ethanol / 1.) THF, r.t., 3 h; 2.) -55 deg C View Scheme |
17β-methoxycarbonyloxy-5α-androstan-3-one
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 87 percent / toluene / 480 °C 2: 1.) lithium tris(1,2-dimethylpropyl)hydridoborate; 2.) water, ethanol / 1.) THF, r.t., 3 h; 2.) -55 deg C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 2.4 g / hydroxylamine hydrochloride / pyridine / 3 h / 60 °C 2: 0.68 g / sodium nitrite, acetic acid / CH2Cl2 / 1 h / Ambient temperature 3: 75 percent / sodium borohydride / ethanol / 1.5 h / Ambient temperature 4: 0.41 g / pyridine / 12 h / Ambient temperature 5: 2percent potassium hydroxide / methanol View Scheme | |
Multi-step reaction with 5 steps 1: 2.4 g / hydroxylamine hydrochloride / pyridine / 3 h / 60 °C 2: 0.68 g / sodium nitrite, acetic acid / CH2Cl2 / 1 h / Ambient temperature 3: 75 percent / sodium borohydride / ethanol / 1.5 h / Ambient temperature 4: 0.41 g / pyridine, acetic anhydride / 12 h / Ambient temperature 5: 2percent potassium hydroxide / methanol View Scheme | |
Multi-step reaction with 5 steps 1: 2.4 g / hydroxylamine hydrochloride / pyridine / 3 h / 60 °C 2: 0.68 g / sodium nitrite, acetic acid / CH2Cl2 / 1 h / Ambient temperature 3: 75 percent / sodium borohydride / ethanol / 1.5 h / Ambient temperature 4: 0.41 g / pyridine, acetic anhydride / 12 h / Ambient temperature 5: 2percent potassium hydroxide / methanol View Scheme |
17-nitroimino-5α-androstan-3β-yl acetate
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 75 percent / sodium borohydride / ethanol / 1.5 h / Ambient temperature 2: 0.41 g / pyridine / 12 h / Ambient temperature 3: 2percent potassium hydroxide / methanol View Scheme | |
Multi-step reaction with 3 steps 1: 75 percent / sodium borohydride / ethanol / 1.5 h / Ambient temperature 2: 0.41 g / pyridine, acetic anhydride / 12 h / Ambient temperature 3: 2percent potassium hydroxide / methanol View Scheme | |
Multi-step reaction with 3 steps 1: 75 percent / sodium borohydride / ethanol / 1.5 h / Ambient temperature 2: 0.41 g / pyridine, acetic anhydride / 12 h / Ambient temperature 3: 2percent potassium hydroxide / methanol View Scheme | |
Multi-step reaction with 3 steps 1: 75 percent / sodium borohydride / ethanol / 1.5 h / Ambient temperature 2: 0.41 g / pyridine, acetic anhydride / 12 h / Ambient temperature 3: 2percent potassium hydroxide / methanol View Scheme |
17β-nitroamino-5α-androstan-3β-yl acetate
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 0.41 g / pyridine / 12 h / Ambient temperature 2: 2percent potassium hydroxide / methanol View Scheme | |
Multi-step reaction with 2 steps 1: 0.41 g / pyridine, acetic anhydride / 12 h / Ambient temperature 2: 2percent potassium hydroxide / methanol View Scheme | |
Multi-step reaction with 2 steps 1: 0.41 g / pyridine, acetic anhydride / 12 h / Ambient temperature 2: 2percent potassium hydroxide / methanol View Scheme | |
Multi-step reaction with 2 steps 1: 0.41 g / pyridine, acetic anhydride / 12 h / Ambient temperature 2: 2percent potassium hydroxide / methanol View Scheme |
(3β,5α)-3-(acetyloxy)androstan-17-one 17-oxime
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 0.68 g / sodium nitrite, acetic acid / CH2Cl2 / 1 h / Ambient temperature 2: 75 percent / sodium borohydride / ethanol / 1.5 h / Ambient temperature 3: 0.41 g / pyridine / 12 h / Ambient temperature 4: 2percent potassium hydroxide / methanol View Scheme | |
Multi-step reaction with 4 steps 1: 0.68 g / sodium nitrite, acetic acid / CH2Cl2 / 1 h / Ambient temperature 2: 75 percent / sodium borohydride / ethanol / 1.5 h / Ambient temperature 3: 0.41 g / pyridine, acetic anhydride / 12 h / Ambient temperature 4: 2percent potassium hydroxide / methanol View Scheme | |
Multi-step reaction with 4 steps 1: 0.68 g / sodium nitrite, acetic acid / CH2Cl2 / 1 h / Ambient temperature 2: 75 percent / sodium borohydride / ethanol / 1.5 h / Ambient temperature 3: 0.41 g / pyridine, acetic anhydride / 12 h / Ambient temperature 4: 2percent potassium hydroxide / methanol View Scheme | |
Multi-step reaction with 4 steps 1: 0.68 g / sodium nitrite, acetic acid / CH2Cl2 / 1 h / Ambient temperature 2: 75 percent / sodium borohydride / ethanol / 1.5 h / Ambient temperature 3: 0.41 g / pyridine, acetic anhydride / 12 h / Ambient temperature 4: 2percent potassium hydroxide / methanol View Scheme |
3β-hydroxy-17-hydrozone-5α-androstane
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: N-chloro-succinimide, Py 2: Na, EtOH View Scheme | |
Multi-step reaction with 2 steps 1: NBS, Py 2: Na, EtOH / Heating View Scheme | |
Multi-step reaction with 2 steps 1: I2, Et3N 2: Na, EtOH / Heating View Scheme | |
Multi-step reaction with 2 steps 1: N-chloro-succinimide, Py 2: Na, EtOH / Heating View Scheme |
meta-bromotoluene
17-bromo-3β-hydroxy-5α-androstan-16-ene
A
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
Stage #1: 17-bromo-3β-hydroxy-5α-androstan-16-ene With tert.-butyl lithium; XPhos In tetrahydrofuran; pentane at -78℃; for 0.5h; Schlenk technique; Inert atmosphere; Stage #2: meta-bromotoluene With tris-(dibenzylideneacetone)dipalladium(0) In tetrahydrofuran; toluene; pentane at -78 - 20℃; Temperature; | A n/a B 44 %Spectr. |
2-methylphenyl bromide
17-bromo-3β-hydroxy-5α-androstan-16-ene
A
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
Stage #1: 17-bromo-3β-hydroxy-5α-androstan-16-ene With tert.-butyl lithium; XPhos In tetrahydrofuran; pentane at -78℃; for 0.5h; Schlenk technique; Inert atmosphere; Stage #2: 2-methylphenyl bromide With tris-(dibenzylideneacetone)dipalladium(0) In tetrahydrofuran; toluene; pentane at -78 - 20℃; | A n/a B 31 %Spectr. |
(4-bromophenoxy)trimethylsilane
17-bromo-3β-hydroxy-5α-androstan-16-ene
A
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
Stage #1: 17-bromo-3β-hydroxy-5α-androstan-16-ene With tert.-butyl lithium; XPhos In tetrahydrofuran; pentane at -78℃; for 0.5h; Schlenk technique; Inert atmosphere; Stage #2: (4-bromophenoxy)trimethylsilane With tris-(dibenzylideneacetone)dipalladium(0) In tetrahydrofuran; toluene; pentane at -78 - 20℃; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: hydrazine hydrate; triethylamine / ethanol / 16 h / 50 °C / Inert atmosphere 1.2: 1 h / 0 - 20 °C 2.1: XPhos; tert.-butyl lithium / pentane; tetrahydrofuran / 0.5 h / -78 °C / Schlenk technique; Inert atmosphere 2.2: -78 - 20 °C View Scheme | |
Multi-step reaction with 3 steps 1: hydrazine hydrate; triethylamine / ethanol / 16 h / 50 °C / Inert atmosphere 2: triethylamine; iodine / tetrahydrofuran / 20 °C / Inert atmosphere; Cooling with ice 3: sodium carbonate; tetrakis(triphenylphosphine) palladium(0) / benzene; methanol; water / 24 h / Schlenk technique; Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: hydrazine hydrate; triethylamine / ethanol / 16 h / 50 °C / Inert atmosphere 1.2: 1 h / 0 - 20 °C 2.1: XPhos; tert.-butyl lithium / pentane; tetrahydrofuran / 0.5 h / -78 °C / Schlenk technique; Inert atmosphere 2.2: -78 - 20 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: hydrazine hydrate; triethylamine / ethanol / 16 h / 50 °C / Inert atmosphere 1.2: 1 h / 0 - 20 °C 2.1: XPhos; tert.-butyl lithium / pentane; tetrahydrofuran / 0.5 h / -78 °C / Schlenk technique; Inert atmosphere 2.2: -78 - 20 °C View Scheme |
2-Methylphenylboronic acid
17-iodo-3β-hydroxy-5α-androstan-16-ene
A
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In methanol; water; benzene for 24h; Suzuki Coupling; Schlenk technique; Reflux; Overall yield = 22 mg; | A n/a B 31 %Spectr. |
3β-hydroxy-17-hydrozone-5α-androstane
A
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triethylamine; iodine / tetrahydrofuran / 20 °C / Inert atmosphere; Cooling with ice 2: sodium carbonate; tetrakis(triphenylphosphine) palladium(0) / benzene; methanol; water / 24 h / Schlenk technique; Reflux View Scheme |
methanol
carbon monoxide
5α-androst-16-en-3β-ol
3β-hydroxy-5α-androstane-16α-carboxylic acid methyl ester
Conditions | Yield |
---|---|
bis-triphenylphosphine-palladium(II) chloride at 100 - 120℃; under 120 Torr; | 83% |
ethanol
carbon monoxide
5α-androst-16-en-3β-ol
(3S,5S,8S,9S,10S,13R,14S,16R)-3-Hydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthrene-16-carboxylic acid ethyl ester
Conditions | Yield |
---|---|
bis-triphenylphosphine-palladium(II) chloride at 120℃; under 120 Torr; | 80% |
Conditions | Yield |
---|---|
With Nonafluorobutanesulfonyl fluoride; 1,8-diazabicyclo[5.4.0]undec-7-ene In toluene at 0 - 5℃; for 1h; | A 20% B 69% |
Conditions | Yield |
---|---|
Stage #1: 5α-androst-16-en-3β-ol; C16H20Cl3NO10 With boron trifluoride diethyl etherate In dichloromethane at -15℃; for 16h; Molecular sieve; Stage #2: With water; sodium hydroxide In methanol for 1h; Overall yield = 67 %; | A 60% B n/a |
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
With acetic acid; platinum Hydrogenation; |
5α-androst-16-en-3β-ol
5α-androstanetriol-(3β.16α.17α)
Conditions | Yield |
---|---|
With pyridine; osmium(VIII) oxide; diethyl ether Schuetteln des Reaktionsprodukts mit wss. KOH und Mannit; |
5α-androst-16-en-3β-ol
acetic anhydride
5α-androst-16-en-3β-yl acetate
Conditions | Yield |
---|---|
With pyridine |
carbon monoxide
5α-androst-16-en-3β-ol
(3S,5S,8S,9S,10S,13R,14S,16R)-3-Hydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthrene-16-carbaldehyde
Conditions | Yield |
---|---|
With di-μ-chlorobis(norbornadiene)dirhodium(I); tributylphosphine; triethylamine In benzene at 120℃; under 90007.2 Torr; | 72 % Spectr. |
carbon monoxide
5α-androst-16-en-3β-ol
isopropyl alcohol
(3S,5S,8S,9S,10S,13R,14S,16R)-3-Hydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthrene-16-carboxylic acid isopropyl ester
Conditions | Yield |
---|---|
bis-triphenylphosphine-palladium(II) chloride at 100℃; under 80 Torr; | 69 % Chromat. |
carbon monoxide
5α-androst-16-en-3β-ol
isopropyl alcohol
(3S,5S,8S,9S,10S,13R,14S,16R)-3-Hydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthrene-16-carboxylic acid tert-butyl ester
Conditions | Yield |
---|---|
bis-triphenylphosphine-palladium(II) chloride at 100℃; under 80 Torr; | 80 % Chromat. |
5α-androst-16-en-3β-ol
A
5alpha-Androstane-3beta,17alpha-diol
B
3β,16α-dihydroxy-5α-androstane
Conditions | Yield |
---|---|
With sodium hydroxide; borane; dihydrogen peroxide 1.) THF, 4 h, 2.) overnight; Yield given; Multistep reaction; | A n/a B 1.58 g |
With sodium hydroxide; borane; dihydrogen peroxide 1.) THF, 4 h, 2.) overnight; Yield given; Multistep reaction; | A 1.17 g B n/a |
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
With 3-chloro-benzenecarboperoxoic acid In chloroform 1.) 0 deg C, 10 min, 2.) room temperature, 2 h; | 1.1 g |
With 3-chloro-benzenecarboperoxoic acid In chloroform |
Conditions | Yield |
---|---|
With di-μ-chlorobis(norbornadiene)dirhodium(I); tributylphosphine; hydrogen In benzene at 120℃; under 60800 Torr; for 6h; Carbonylation; condensation; hydrogenation; | A 13.7 % Chromat. B 78.4 % Chromat. C 7.8 % Chromat. |
Conditions | Yield |
---|---|
With di-μ-chlorobis(norbornadiene)dirhodium(I); tributylphosphine; hydrogen In benzene at 120℃; under 60800 Torr; for 6h; Carbonylation; condensation; hydrogenation; | A 7.4 % Chromat. B 92.6 % Chromat. |
N-(2-hydroxyethyl)-N-propylamine
carbon monoxide
5α-androst-16-en-3β-ol
Conditions | Yield |
---|---|
With di-μ-chlorobis(norbornadiene)dirhodium(I); tributylphosphine; hydrogen In benzene at 120℃; under 60800 Torr; for 6h; Carbonylation; condensation; hydrogenation; | A 6.5 % Chromat. B 4.4 % Chromat. C 89.0 % Chromat. |
Conditions | Yield |
---|---|
With di-μ-chlorobis(norbornadiene)dirhodium(I); tributylphosphine; hydrogen In benzene at 120℃; under 60800 Torr; for 6h; Carbonylation; condensation; hydrogenation; | A 8.2 % Chromat. B 91.8 % Chromat. |
pyridine
diethyl ether
5α-androst-16-en-3β-ol
5α-androstanetriol-(3β.16α.17α)
Conditions | Yield |
---|---|
Schuetteln des Reaktionsprodukts mit wss. KOH und Mannit; |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 1.) borane, 2.) aq. NaOH, H2O2 / 1.) THF, 4 h, 2.) overnight 2: 1 g / CrO3 / acetone / 0.5 h / 0 deg C to room temperature 3: 0.85 g / NaBH4 / methanol / 0.67 h / 0 °C View Scheme |
5α-androst-16-en-3β-ol
11α,16β-dihydroxy-5α-androstane-3-one
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 1.) borane, 2.) aq. NaOH, H2O2 / 1.) THF, 4 h, 2.) overnight 2: 1 g / CrO3 / acetone / 0.5 h / 0 deg C to room temperature 3: 0.85 g / NaBH4 / methanol / 0.67 h / 0 °C 4: 4.5 percent / Cephalosporium aphidicola in shake culture / ethanol / 168 h View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 1.) borane, 2.) aq. NaOH, H2O2 / 1.) THF, 4 h, 2.) overnight 2: 1 g / CrO3 / acetone / 0.5 h / 0 deg C to room temperature View Scheme |
The IUPAC name of 5alpha-Androst-16-en-3beta-ol is (3S,5S,8R,9S,10S,13R,14S)-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol. With the CAS registry number 7148-51-8, it is also named as 16,(5-alpha)-Androsten-3-beta-ol. The product's categories are Intermediates & Fine Chemicals; Metabolites & Impurities; Pharmaceuticals; Steroids. It is a metabolite of 16-Androstene.
The other characteristics of 5alpha-Androst-16-en-3beta-ol can be summarized as: (1)ACD/LogP: 5.88; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 5.88; (4)ACD/LogD (pH 7.4): 5.88; (5)ACD/BCF (pH 5.5): 17447; (6)ACD/BCF (pH 7.4): 17447; (7)ACD/KOC (pH 5.5): 37827.77; (8)ACD/KOC (pH 7.4): 37827.77; (9)#H bond acceptors: 1; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 1; (12)Index of Refraction: 1.54; (13)Molar Refractivity: 82.96 cm3; (14)Molar Volume: 264.4 cm3; (15)Polarizability: 32.89×10-24 cm3; (16)Surface Tension: 41.1 dyne/cm; (17)Enthalpy of Vaporization: 71.9 kJ/mol; (18)Vapour Pressure: 4E-07 mmHg at 25°C; (19)Exact Mass: 274.229666; (20)MonoIsotopic Mass: 274.229666; (21)Topological Polar Surface Area: 20.2; (22)Heavy Atom Count: 20; (23)Complexity: 428; (24)Defined Atom StereoCenter Count: 7.
People can use the following data to convert to the molecule structure.
1. SMILES:O[C@@H]4C[C@@H]3CC[C@H]2[C@H]1[C@@](/C=C\C1)(CC[C@@H]2[C@@]3(C)CC4)C
2. InChI:InChI=1/C19H30O/c1-18-9-3-4-16(18)15-6-5-13-12-14(20)7-11-19(13,2)17(15)8-10-18/h3,9,13-17,20H,4-8,10-12H2,1-2H3/t13-,14-,15-,16-,17-,18-,19-/m0/s1
3. InChIKey:KRVXMNNRSSQZJP-LOVVWNRFBX
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