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Shaanxi New nine Material Technology Co., Ltd.

Our Advantage: 1. Rich experience We specialize in this filed for many years, our APIs exported to all over the world and and we established long friendly relations of cooperation with our clients. 2. Great quality,purity and favorable Good quali

Dehydroepiandrosterone

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $10.0

Type:Trading Company

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Luyunjia Chemistry Xiamen Limited

Xiamen Luyunjia Trading Co.,Ltd Package:1kg/bag; 2473kg/drum, or as customer's request. Application:Xiamen Luyunjia Trading Co.,Ltd Transportation:DHL, EMS, FedEx, TNT, AIR, SEA Port:Beijing,Shanghai,Guangzhou ,China main port

Dehydroepiandrosterone

Cas:53-43-0

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Think Chemical Co. Ltd

Dehydroepiandrosterone CAS No.:53-43-0 Name: Dehydroepiandrosterone Synonyms: DHEA; Prasterone; Androstenolone; Dehydroisoandrosterone; trans-Dehydroandrosterone; Hydroxyandrost-5-en-17-one Molecular Structur

High purity Dehydroepiandrosterone CAS No.:53-43-0

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $2.0

Type:Other

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Shanghai Seasonsgreen Chemical Co.,Ltd

Shanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu

lower price High quality 6-Methylcoumarin Dehydroepiandrosterone

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

inquiry

HANWAYS CHEMPHARM CO.,LIMITED

Dehydroepiandrosterone (DHEA), also known as androstenolone, is an endogenous steroid hormone. It is one of the most abundant circulating steroids in humans, in whom it is produced in the adrenal glands, the gonads, and the brain. It functions as a

DHEA hormones 7-keto Dehydroepiandrosterone CAS: 53-43-0 in stock

Cas:53-43-0

Min.Order:0 Metric Ton

Negotiable

Type:Trading Company

inquiry

Senova Technology Company Limited

We have most reliable quality, competitive prices and full documents for this APIs 1. GMP WORKSHOP 2. DMF Appearance:White Fine Crystalline Powder Storage:Hormones Application:Major secretory steroidal product of the adrenal gland; secre

Dehydroepiandrosterone

Cas:53-43-0

Min.Order:100 Gram

Negotiable

Type:Trading Company

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Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance White or almost white crystalline powder white crystalline powder Assay

High purity dehydroepiandrosterone with high quality cas:53-43-0

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $190.0 / 290.0

Type:Trading Company

inquiry

Kono Chem Co.,Ltd

Product Name Dehydroepiandrosterone Synonyms DHEA; Prasterone; Androstenolone; Dehydroisoandrosterone; trans-Dehydroandrosterone; Hydroxyandrost-5-en-17-one

DHEA Dehydroisoandrosterone 53-43-0

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $220.0 / 230.0

Type:Other

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Hebei yanxi chemical co.,LTD.

hebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm

Dehydroepiandrosterone Cas 53-43-0

Cas:53-43-0

Min.Order:1 Metric Ton

FOB Price: $1.0 / 3.0

Type:Manufacturers

inquiry

Xi'an Quanao Biotech Co., Ltd.

Xi’an Quanao Biotech Co., Ltd. with 18 years experience in plant extract filed. Product grade: Medicine, Health care product, Cosmetics, Food, Beverage, Feed. Hot selling market: Europe, North America, South America, Middle East, Asia Pacifi

99% API Dehydroepiandrosterone / DHEA powder cas:53-43-0

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $329.0 / 429.0

Type:Manufacturers

inquiry

Hefei TNJ chemical industry co.,ltd

Properties Dehydroepiandrosterone is a white crystalline powder, no smell, no smell, stability in the air. Dehydroepiandrosterone/dehydroepiandrostenedione (DHEA,

Dehydroepiandrosterone, CAS No. 53-43-0

Cas:53-43-0

Min.Order:5 Kilogram

Negotiable

Type:Trading Company

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Henan Allgreen Chemical Co.,Ltd

high quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai

Dehydroepiandrosterone

Cas:53-43-0

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply (+)-Dehydroisoandrosterone

Cas:53-43-0

Min.Order:1

Negotiable

Type:Other

inquiry

Wuhan Fortuna Chemical Co.,Ltd

Product Name: Dehydroepiandrosterone CAS RN.: 53-43-0 EINECS: 200-175-5 Molecular Weight:

Dehydroepiandrosterone 53-43-0

Cas:53-43-0

Min.Order:25 Kilogram

Negotiable

Type:Trading Company

inquiry

Chengdu Lemeitian Pharmaceutical Technology Co,. Ltd

ADVANTAGE: 1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day 2. The products are provided with COA, HPLC, NMR, quality assurance,

Dehydroepiandrosterone

Cas:53-43-0

Min.Order:10 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Xi`an Eastling Biotech Co., Ltd.

(+)-Dehydroisoandrosterone CAS: 53-43-0 Molecular Formula: C19H28O2 Home Product Category Biomedicine Drug substance (+)-Dehydroisoandrosterone (+)-Dehydroisoandrosterone - Names and Identifiers Name (+)-Dehydroisoandrosterone

factory supply Dehydroepiandrosterone/DHEA

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $159.0 / 170.0

Type:Trading Company

inquiry

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

Prasterone

Cas:53-43-0

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hubei DiBo chemical co., LTD

Name:Dehydroepiandrosterone CAS NO: 53-43-0 Grade:Medical scientific research and export Molecular formula:C19H28O2 Molecular weight: 288.4244 Product Quality 12 years of chemical raw materials Mature operation of the industry System stabi

Dehydroepiandrosterone/ CAS:53-43-0/Dehydroepiandrosterone raw material/ high-quality

Cas:53-43-0

Min.Order:25 Kilogram

FOB Price: $1.0 / 2.0

Type:Other

inquiry

Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O

tianfu-chem_Dehydroepiandrosterone 53-43-0

Cas:53-43-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

LIDE PHARMACEUTICALS LIMITED

LIDE PHARMACEUTICALS LIMITED is a professional chemicals and APIs leading manufacturer in China. Our core business line covers APIs, Intermediates, Herb extract, etc.

Dehydroepiandrosterone

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $0.9 / 1.0

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufactu

Dehydroepiandrosteron CAS 53-43-0

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

inquiry

Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

hot sell Dehydroepiandrosterone

Cas:53-43-0

Min.Order:10 Gram

Negotiable

Type:Trading Company

inquiry

Antimex Chemical Limied

Dehydroisoandrosterone DHEA CAS: 53-43-0 EINECS: 200-175-5 Molecular Formula: C19H28O2 Molecular Weight: 288.43 Assay: 98% min. Packing: Foil bag or tin. Usage: Pharmaceutical intermediates, For the production of steroidal hormone drugs and

DHEA

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $15.0

Type:Lab/Research institutions

inquiry

Henan Sinotech Import&Export Corporation

Chemical Name dehydroepiandrosterone Synonyms DHEA;Dehydroisoandrosterone;PRASTERONE;3β-Hydroxy-5-androsten-17-one;17-Hormoforin;Deandros;5-Androsten-3β-ol-17-one;17-Chetovis;Dehydroepiandro

Dehydroepiandrosterone

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

inquiry

Hubei Langyou International Trading Co., Ltd

Factory hot sell Dehydroepiandrosterone 53-43-0 with satisfied quality 1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price;

Factory hot sell Dehydroepiandrosterone 53-43-0 with satisfied quality

Cas:53-43-0

Min.Order:100 Gram

Negotiable

Type:Other

inquiry

Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

Dehydroepiandrosterone 53-43-0

Cas:53-43-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

DB BIOTECH CO., LTD

DHEA CAS No.: 53-43-0 Other Names: DHEA powder MF: C19H28O2 EINECS No.: 200-175-5 Place of Origin: China Type: Antipyretic Analgesics and NSAIDs Gr

DHEA

Cas:53-43-0

Min.Order:1 Kilogram

FOB Price: $170.0 / 180.0

Type:Trading Company

inquiry

Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese

dehydroepiandrosterone, DHEA/CAS:53-43-0

Cas:53-43-0

Min.Order:1 Gram

FOB Price: $50.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

Dehydroepiandrosterone CAS: 53-43-0 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic inte

Dehydroepiandrosterone CAS: 53-43-0

Cas:53-43-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Changchun Artel lmport and Export trade company

Superiority We can customize and synthesize products that other suppliers may not be able to provide. Advantage cof, mof ligand manufacturer Product Detail

99.0% high purity Dehydroepiandrosterone, CAS 53-43-0, C19H28O2

Cas:53-43-0

Min.Order:100 Kilogram

Negotiable

Type:Trading Company

inquiry

Synthetic route

prasterone acetate
853-23-6

prasterone acetate

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
With sodium hydroxide In methanol98.54%
With methanol; sodium hydroxide at 40℃; for 4h; Inert atmosphere;94.8%
With potassium hydroxide In ethanol
(1aR,3aR,3bS,5aS,8aS,8bR,10aR)-10-Hydroxy-3a,5a-dimethyl-tetradecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-one
1028084-93-6

(1aR,3aR,3bS,5aS,8aS,8bR,10aR)-10-Hydroxy-3a,5a-dimethyl-tetradecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-one

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
With Me3SiN=CMe(1+)*BF4(1-); water In acetonitrile96%
Acetic acid (1aR,3aR,3bS,5aS,8aS,8bR,10aR)-3a,5a-dimethyl-6-oxo-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-10-yl ester
24357-31-1, 58691-91-1

Acetic acid (1aR,3aR,3bS,5aS,8aS,8bR,10aR)-3a,5a-dimethyl-6-oxo-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-10-yl ester

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
With Me3SiN=CMe(1+)*BF4(1-); water In acetonitrile96%
(17Ξ)-spiro[androst-5-en-17,2'-[1,3]oxathiolan]-3β-ol
327622-68-4

(17Ξ)-spiro[androst-5-en-17,2'-[1,3]oxathiolan]-3β-ol

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
With N-Bromosuccinimide; water In acetone at 20℃; for 8h; Hydrolysis;88%
3β-[2-(triphenylsilyl)ethoxycarbonyloxy]androst-5-en-17-one
1310361-06-8

3β-[2-(triphenylsilyl)ethoxycarbonyloxy]androst-5-en-17-one

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride; cesium fluoride In tetrahydrofuran at 0℃; for 0.166667h; Inert atmosphere;88%
5-androsten-3β,17α-diol-17-carboxylic acid
81481-38-1

5-androsten-3β,17α-diol-17-carboxylic acid

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
With sodium hydroxide; sodium hypochlorite In diethyl ether 1.) 0 deg C -> room temperature, 2.) room temperature, 3 h;85%
Androstenedione
63-05-8

Androstenedione

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
Stage #1: Androstenedione With titanium(IV) oxide; platinum In toluene at 100℃; for 3h;
Stage #2: With hydrogen In toluene under 15001.5 Torr; for 8h; Temperature; Reagent/catalyst; Pressure;
85%
Multi-step reaction with 2 steps
1.1: potassium tert-butylate / tert-butyl alcohol / 1.5 h / 35 - 40 °C / Inert atmosphere
1.2: 20 - 25 °C
2.1: NADP; magnesium(II) chloride hexahydrate; alpha-D-glucopyranose; NAD+ / 2-methyltetrahydrofuran; aq. phosphate buffer / 20 - 32 °C / Enzymatic reaction
View Scheme
Multi-step reaction with 2 steps
1: potassium tert-butylate / tert-butyl alcohol / 1 h / 30 - 35 °C / Inert atmosphere
2: D-glucose; NAD; glucose dehydrogenase (CDX-901)_; ketoreductase from Sphingomonas wittichii; potassium carbonate / ethyl acetate; aq. phosphate buffer / 21 h / 32.5 °C / pH 6.3 - 6.5 / Inert atmosphere; Enzymatic reaction
View Scheme
Multi-step reaction with 4 steps
1: aluminum (III) chloride; 5-sulfosalicylic Acid / 5 h / 20 - 30 °C / Inert atmosphere; Large scale
2: orthoformic acid triethyl ester; boron trifluoride diethyl etherate / dichloromethane / 5 h / 20 - 30 °C / Inert atmosphere
3: calcium borohydride / dichloromethane / 15 h / -20 - -15 °C
4: toluene-4-sulfonic acid / acetone; water / 1 h / 45 - 50 °C / Inert atmosphere
View Scheme
17-oxo-androst-5-en-3β-yl Se-phenyl selenocarbonate
76920-40-6

17-oxo-androst-5-en-3β-yl Se-phenyl selenocarbonate

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

3β-formyl-oxy-5-androsten-17-one
29163-23-3

3β-formyl-oxy-5-androsten-17-one

C

5-androsten-17-one
25824-80-0

5-androsten-17-one

Conditions
ConditionsYield
With 2,2'-azobis(isobutyronitrile); tri-n-butyl-tin hydride In benzene at 80℃;A 9%
B 76%
C 5%
With 2,2'-azobis(isobutyronitrile); tri-n-butyl-tin hydride In 1,3,5-trimethyl-benzene at 164℃;A 10%
B 28%
C 62%
3-tetrahydropyran-2-yloxy-androst-5-en-17-one
19637-35-5

3-tetrahydropyran-2-yloxy-androst-5-en-17-one

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
With silica gel; copper(II) sulfate In dichloromethane for 24h; Heating;70%
3β-acetoxy-20-hydroxyiminopregna-5,16-diene
23549-24-8, 23549-26-0, 2174-13-2

3β-acetoxy-20-hydroxyiminopregna-5,16-diene

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
Stage #1: 3β-acetoxy-20-hydroxyiminopregna-5,16-diene With pyridine; trichlorophosphate at 0 - 20℃; for 3h; Inert atmosphere;
Stage #2: With methanol; sodium hydroxide for 12h; Reflux;
64%
Stage #1: 3β-acetoxy-20-hydroxyiminopregna-5,16-diene With pyridine; trichlorophosphate In toluene at 10 - 20℃; for 4h; Bechmanns' reaction;
Stage #2: With potassium hydroxide In methanol Heating;
51.8%
With pyridine; trichlorophosphate at -5℃; Beckmann rearrangement;
Multi-step reaction with 2 steps
1: phosphorus (III) oxychloride
2: potassium hydroxide / methanol
View Scheme
16α-iodo-3β-hydroxy-5-androsten-17-one
17134-39-3

16α-iodo-3β-hydroxy-5-androsten-17-one

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

16α-hydroxy dehydroepiandrosterone
1232-73-1

16α-hydroxy dehydroepiandrosterone

Conditions
ConditionsYield
With sodium hydroxide In pyridine; water for 1h;A 20%
B 60%
With sodium hydroxide In pyridine; water for 1h;A 20%
B 60%
With sodium hydroxide In pyridine; water for 1h; Mechanism; var. of NaOH conc. and time;A 20%
B 60%
Trifluoro-methanesulfonic acid (3S,8R,9S,10R,13S,14S)-10,13-dimethyl-17-oxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

Trifluoro-methanesulfonic acid (3S,8R,9S,10R,13S,14S)-10,13-dimethyl-17-oxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

bis(3β-androst-5-en-17-one) ether
66147-28-2

bis(3β-androst-5-en-17-one) ether

Conditions
ConditionsYield
With 1,2,2,6,6-pentamethylpiperidine In water Heating;A 60%
B 40%
3β-O-(tetrahydropyranyl)-17-cycloethylenedioxy-androst-5-ene

3β-O-(tetrahydropyranyl)-17-cycloethylenedioxy-androst-5-ene

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

3β-hydroxy-17,17-ethylenedioxo-5-androstene
7745-40-6, 14456-21-4

3β-hydroxy-17,17-ethylenedioxo-5-androstene

C

3-tetrahydropyran-2-yloxy-androst-5-en-17-one
19637-35-5

3-tetrahydropyran-2-yloxy-androst-5-en-17-one

Conditions
ConditionsYield
With silica gel; copper(II) sulfate In benzene at 25℃; for 40h;A 17%
B 59%
C 2%
With silica gel; copper(II) sulfate In chloroform at 25℃; for 40h;A 51%
B 6%
C 30%
C28H47NO2

C28H47NO2

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
With 3-chloro-benzenecarboperoxoic acid In dichloromethane at 0℃; for 0.166667h;46%
Phenylselenyl bromide
34837-55-3

Phenylselenyl bromide

androstenone hydrazone
63015-10-1, 77059-27-9

androstenone hydrazone

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

17-bromo-3β-hydroxy-17-selenophenylandrost-5-ene
114474-49-6

17-bromo-3β-hydroxy-17-selenophenylandrost-5-ene

C

3β-hydroxy-17-phenylselenoandrosta-5,16-diene
91414-16-3

3β-hydroxy-17-phenylselenoandrosta-5,16-diene

Conditions
ConditionsYield
With pyridine In tetrahydrofuranA 45%
B 8%
C 20%
5-androstene-3β,17β-diol 3-acetate 17-p-toluene-δ-sulfonate
1259-22-9

5-androstene-3β,17β-diol 3-acetate 17-p-toluene-δ-sulfonate

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

androst-5-ene-3β,17α-diol
1963-03-7

androst-5-ene-3β,17α-diol

C

17β-methyl-18-norandrosta-5,13-diene-3β-ol
82309-44-2

17β-methyl-18-norandrosta-5,13-diene-3β-ol

17-methyl-18-norandrosta-5,13(17)-diene-3β-ol
23930-65-6

17-methyl-18-norandrosta-5,13(17)-diene-3β-ol

Conditions
ConditionsYield
With potassium acetate In dimethyl sulfoxide at 100℃; for 6h;A 25%
B 41%
C n/a
D n/a
17-(N-2-pyridylmethyl)imino-3β-hydroxy-androst-5-ene

17-(N-2-pyridylmethyl)imino-3β-hydroxy-androst-5-ene

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

(-)-3β,12β-dihydroxyandrost-5-ene-17-one
828938-19-8

(-)-3β,12β-dihydroxyandrost-5-ene-17-one

Conditions
ConditionsYield
Multistep reaction;A 22%
B 35%
cholesterol
57-88-5

cholesterol

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

Androstenedione
63-05-8

Androstenedione

Conditions
ConditionsYield
With [2,2]bipyridinyl; Cephalosporium longisporum; Micrococcus sp; Pseudomonas stutzeri at 29℃; for 72h;A 27%
B 6%
17-(N-2-pyridylmethyl)imino-3β-hydroxy-androst-5-ene

17-(N-2-pyridylmethyl)imino-3β-hydroxy-androst-5-ene

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

12β-chloro-3β-hydroxy-androst-5-en-17-one

12β-chloro-3β-hydroxy-androst-5-en-17-one

C

(-)-3β,12β-dihydroxyandrost-5-ene-17-one
828938-19-8

(-)-3β,12β-dihydroxyandrost-5-ene-17-one

Conditions
ConditionsYield
Multistep reaction;A 21%
B 19%
C 25%
Pregnenolone
145-13-1

Pregnenolone

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

17α-Hydroperoxy-5-pregnen-3β-ol-20-on
34069-59-5

17α-Hydroperoxy-5-pregnen-3β-ol-20-on

Conditions
ConditionsYield
With 18-crown-6 ether In tetrahydrofuran; benzene at 18℃; under 760 Torr; for 24h;A 23%
B 9%
Conditions
ConditionsYield
With Gelasinospora retispora GRK002 In methanol; water at 34℃; for 336h; pH=5; Microbiological reaction;A 23%
B 18%
C 11%
Pregnenolone
145-13-1

Pregnenolone

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

17-Hydroxypregnenolone
387-79-1

17-Hydroxypregnenolone

Conditions
ConditionsYield
With potassium phosphate buffer; α-D-glucose 6-phosphate; NADP; phosphatidylcholine Mechanism; pig 17α-hydroxylase-17,20-lyase, NADPH-cytochrome-P-450-reductase, glucose-6-phosphate dehydrogenase, pH 7.2; also in the presence of cytochrome b5 or bovine tests microsomes; also 3β-hydroxyandrost-5-ene-17β-carbaldehyde;A 16%
B 21%
cholesterol
57-88-5

cholesterol

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

β-sitosterol
83-46-5

β-sitosterol

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

dehydroepiandrosterone sulfate
651-48-9

dehydroepiandrosterone sulfate

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

6β-hydroxy-3α,5-cycloandrostan-17-one
663-39-8, 24357-32-2, 57236-38-1, 118013-84-6

6β-hydroxy-3α,5-cycloandrostan-17-one

Conditions
ConditionsYield
Ausbeute in gepufferten wss. Loesungen (pH 1.2-6.8);
5-androstenedione
571-36-8

5-androstenedione

A

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

B

3α-hydroxy-androst-5-en-17-one
2283-82-1

3α-hydroxy-androst-5-en-17-one

Conditions
ConditionsYield
With ethanol; nickel Hydrogenation;
3β-benzoyloxy-androst-5-en-17-one
83205-52-1, 2080-86-6

3β-benzoyloxy-androst-5-en-17-one

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
With potassium hydroxide
With potassium hydroxide
17β-Aminoandrost-5-en-3β-ol
4350-66-7

17β-Aminoandrost-5-en-3β-ol

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
With diethyl ether; hypochloric acid; sodium sulfate at 0℃; Erwaermen des Reaktionsprodukts mit Natriumaethylat und Aethanol und Behandeln des Reaktionsloesung mit wss.H2SO4;
3β,17-dihydroxy-androst-5-ene-17α-carbonitrile
35060-03-8

3β,17-dihydroxy-androst-5-ene-17α-carbonitrile

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
unter vermindertem Druck;
at 110 - 120℃;
3β-acetoxy-20-methyl-pregnadiene-(5,17(20))
60446-55-1

3β-acetoxy-20-methyl-pregnadiene-(5,17(20))

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Conditions
ConditionsYield
With chloroform; bromine anschliessendes Behandeln mit Ozon; Erhitzen des erhaltenen Reaktionsprodukts mit Zink-Pulver und Essigsaeure und Hydrolysieren des isolierten 3β-Acetoxy-androsten-(5)-ons-(17);
With potassium permanganate; acetic acid at 50℃; Erhitzen des erhaltenen Reaktionsprodukts mit Zink-Pulver und Essigsaeure und Hydrolysieren des isolierten 3β-Acetoxy-androsten-(5)-ons-(17);
formic acid
64-18-6

formic acid

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

3β-formyl-oxy-5-androsten-17-one
29163-23-3

3β-formyl-oxy-5-androsten-17-one

Conditions
ConditionsYield
In water for 19h;100%
at 20 - 25℃; for 4h;100%
for 5h; Reflux;89.3%
for 5h; Reflux;
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

Epiandrosterone
481-29-8

Epiandrosterone

Conditions
ConditionsYield
With palladium on activated charcoal; hydrogen In ethanol at 20℃; under 2068.65 Torr; Inert atmosphere;100%
With palladium on activated charcoal; hydrogen In ethanol under 2068.65 Torr;100%
With palladium 10% on activated carbon; hydrogen In ethanol at 40℃; under 2068.65 Torr; for 12h;99%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

acetic anhydride
108-24-7

acetic anhydride

prasterone acetate
853-23-6

prasterone acetate

Conditions
ConditionsYield
With toluene-4-sulfonic acid for 0.0111667h; microwave irradiation;100%
With dmap; triethylamine In dichloromethane at 20℃; for 5h;100%
With dmap; triethylamine In dichloromethane at 20℃; for 5h;100%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

ethylene glycol
107-21-1

ethylene glycol

3β-hydroxy-17,17-ethylenedioxo-5-androstene
7745-40-6, 14456-21-4

3β-hydroxy-17,17-ethylenedioxo-5-androstene

Conditions
ConditionsYield
With camphor-10-sulfonic acid In toluene at 111℃;100%
With toluene-4-sulfonic acid In benzene for 4.5h; Heating;99%
With camphor-10-sulfonic acid In cyclohexane for 20h; Reflux;99%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

tert-butyldimethylsilyl chloride
18162-48-6

tert-butyldimethylsilyl chloride

(3S)-3-tert-butyldimethylsilyloxyandrost-5-en-17-one
42151-23-5

(3S)-3-tert-butyldimethylsilyloxyandrost-5-en-17-one

Conditions
ConditionsYield
With dmap In dichloromethane 1.) 0 deg C, 1 h, 2.) room temperature, 16 h;100%
With dmap; triethylamine In dichloromethane at 20℃; for 15h;100%
With 1H-imidazole In dichloromethane at 25℃; for 12h;99%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

diethyl dicarbonate
1609-47-8

diethyl dicarbonate

3β-ethoxycarbonyloxyandrost-5-en-17-one
86270-42-0

3β-ethoxycarbonyloxyandrost-5-en-17-one

Conditions
ConditionsYield
for 0.5h; Heating;100%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

tert-butylchlorodiphenylsilane
58479-61-1

tert-butylchlorodiphenylsilane

(3S,10R,13S)-3-((tert-butyldiphenylsilyl)oxy)-10,13-dimethyl-3,4,7,8,9,10,11,12,13,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17(2H)-one
191677-71-1

(3S,10R,13S)-3-((tert-butyldiphenylsilyl)oxy)-10,13-dimethyl-3,4,7,8,9,10,11,12,13,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17(2H)-one

Conditions
ConditionsYield
With 1H-imidazole In N,N-dimethyl-formamide for 120h; Ambient temperature;100%
With impramine99%
With 1H-imidazole In dichloromethane at 0 - 20℃; for 5h;98%
chloro-trimethyl-silane
75-77-4

chloro-trimethyl-silane

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

PdCl2(PPh3)2
3747-91-9

PdCl2(PPh3)2

Conditions
ConditionsYield
With pyridine In N,N-dimethyl-formamide at 0 - 20℃; for 2.16667h; Inert atmosphere;100%
With triethylamine In tetrahydrofuran at 20℃;97%
Stage #1: dehydroepiandrosterone With 1H-imidazole In dichloromethane at 20 - 30℃; for 0.0833333h;
Stage #2: chloro-trimethyl-silane In dichloromethane at 20 - 30℃; for 2h; Reagent/catalyst;
81.6%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

(3S,8R,9S,10R,13S,14S)-5',5',10,13-tetramethyl-1,2,3,4,7,8,9,10,11,12,13,14,15,16-tetradecahydrospiro[cyclopenta[a]phenanthrene-17,2'-[1,3]dioxan]-3-ol

(3S,8R,9S,10R,13S,14S)-5',5',10,13-tetramethyl-1,2,3,4,7,8,9,10,11,12,13,14,15,16-tetradecahydrospiro[cyclopenta[a]phenanthrene-17,2'-[1,3]dioxan]-3-ol

Conditions
ConditionsYield
With camphor-10-sulfonic acid In cyclohexane at 85℃; for 16h; Dean-Stark;99.8%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

dehydroepiandrosterone-17-hydrazone
63015-10-1

dehydroepiandrosterone-17-hydrazone

Conditions
ConditionsYield
With barium sulfate; hydrazine hydrate In ethanol; water at 20 - 30℃; for 12h; Large scale;99.2%
With sulfuric acid; hydrazine hydrate In ethanol at 20℃; for 40h;98.7%
Stage #1: dehydroepiandrosterone With hydrazine hydrate In ethanol at 35℃;
Stage #2: With hydrazinium sulfate In ethanol at 35℃; for 20h;
98.5%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

chloromethyl methyl ether
107-30-2

chloromethyl methyl ether

(3β)-3-(methoxymethoxy)-androst-5-en-17-one
18000-76-5

(3β)-3-(methoxymethoxy)-androst-5-en-17-one

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; for 3.5h;99%
With N,N-dimethyl-aniline In dichloromethane; benzene for 12h; Ambient temperature;75%
cycloheptanoic acid
1460-16-8

cycloheptanoic acid

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

17-oxaandrost-5-ene-3β-yl cycloheptanoate
1470067-56-1

17-oxaandrost-5-ene-3β-yl cycloheptanoate

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In chloroform at 20℃; for 2h;99%
With dmap; dicyclohexyl-carbodiimide In chloroform at 20℃; for 2h;88%
With dmap; dicyclohexyl-carbodiimide In chloroform Steglich Esterification;
With dmap; dicyclohexyl-carbodiimide
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

methanesulfonyl chloride
124-63-0

methanesulfonyl chloride

androst-5-en-3β-ol-17-one mesylate
25810-70-2

androst-5-en-3β-ol-17-one mesylate

Conditions
ConditionsYield
With pyridine at 20 - 25℃; for 20h; Inert atmosphere;98.4%
With pyridine at 20℃; for 24h;76%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

pivaloyl chloride
3282-30-2

pivaloyl chloride

(3S,8R,9S,10R,13S,14S)-10,13-dimethyl-17-oxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ylpivalate
158300-47-1

(3S,8R,9S,10R,13S,14S)-10,13-dimethyl-17-oxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ylpivalate

Conditions
ConditionsYield
With pyridine at 10 - 28℃; for 16.5h;98.1%
With pyridine at 85℃; for 14h;91%
With pyridine; dmap at 0℃; for 4h;5.83 g
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

androst-5-en-3β-ol
1476-64-8

androst-5-en-3β-ol

Conditions
ConditionsYield
With potassium hydroxide; hydrazine hydrate In diethylene glycol a) 120 deg C, 1 h, b) 230 deg C, 3.5 h;98%
Stage #1: dehydroepiandrosterone With hydrazine hydrate In diethylene glycol at 130℃; for 2h; Wolff-Kishner Reduction;
Stage #2: With potassium hydroxide In diethylene glycol at 210℃; for 4h;
Stage #3: With sulfuric acid In water; diethylene glycol
95.8%
With chloro-trimethyl-silane; zinc In methanol; dichloromethane at 0 - 20℃; for 18h; Clemmensen Reduction;75%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

benzaldehyde
100-52-7

benzaldehyde

16-benzylidene-17-oxo-5-androsten-3β-ol
17243-87-7, 74708-33-1

16-benzylidene-17-oxo-5-androsten-3β-ol

Conditions
ConditionsYield
With potassium hydroxide In ethanol at 20℃; for 1h;98%
With methanol; potassium hydrogencarbonate
With Aliquat 336; sodium carbonate In water at 80℃; for 2.5h; Aldol Condensation;
With potassium fluoride on basic alumina In ethanol for 1h; Claisen-Schmidt Condensation; Reflux;
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

benzoyl chloride
98-88-4

benzoyl chloride

3β-benzoyloxy-androst-5-en-17-one
83205-52-1, 2080-86-6

3β-benzoyloxy-androst-5-en-17-one

Conditions
ConditionsYield
With pyridine at 10 - 25℃; Reagent/catalyst; Temperature;98%
With tetramethylurea at 70 - 75℃; for 3h;78%
With pyridine at 20℃; for 12h;76%
With pyridine
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

iopanoic acid
96-83-3

iopanoic acid

dehydroepiandrosterone iopanoate
83172-20-7

dehydroepiandrosterone iopanoate

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In dichloromethane Ambient temperature;98%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

3β-hydroxy-16α-bromoandrost-5-ene-17-one
1093-91-0

3β-hydroxy-16α-bromoandrost-5-ene-17-one

Conditions
ConditionsYield
With copper(ll) bromide In methanol for 12h; Heating;98%
With copper(ll) bromide In methanol at 70℃; for 12h;97%
With copper(I) bromide In methanol; benzene for 4h; Heating / reflux;62.77%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

1-amino-2-propene
107-11-9

1-amino-2-propene

17β-allylamino-3β-hydroxyandrost-5-ene
1322574-37-7

17β-allylamino-3β-hydroxyandrost-5-ene

Conditions
ConditionsYield
With sodium tris(acetoxy)borohydride; acetic acid In tetrahydrofuran; 1,2-dichloro-ethane at 20℃;98%
With sodium tris(acetoxy)borohydride; acetic acid In tetrahydrofuran; 1,2-dichloro-ethane for 48h;
Cyclobutanecarboxylic acid
3721-95-7

Cyclobutanecarboxylic acid

dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

3β-cyclobutylcarbonyloxy-5-androsten-17-one
1345406-89-4

3β-cyclobutylcarbonyloxy-5-androsten-17-one

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In chloroform at 20℃; for 2h;98%
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 2h;90.4%
With dmap; dicyclohexyl-carbodiimide In chloroform at 20℃; for 2h;84%
With dmap; dicyclohexyl-carbodiimide In chloroform Steglich Esterification;
With dmap; dicyclohexyl-carbodiimide
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

4-fluorobenzaldehyde
459-57-4

4-fluorobenzaldehyde

(E)-16-(4-fluorophenyl)methylidene-trans-dehydroandrosterone
1428382-54-0

(E)-16-(4-fluorophenyl)methylidene-trans-dehydroandrosterone

Conditions
ConditionsYield
With potassium hydroxide In ethanol at 20℃; for 1h;98%
With potassium fluoride on basic alumina In ethanol for 1h; Claisen-Schmidt Condensation; Reflux;
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

2-methylphenyl aldehyde
529-20-4

2-methylphenyl aldehyde

(E)-16-(2-methylphenyl)methylidene-trans-dehydroandrosterone
1428382-57-3

(E)-16-(2-methylphenyl)methylidene-trans-dehydroandrosterone

Conditions
ConditionsYield
With potassium hydroxide In ethanol at 20℃; for 1h;98%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

toluene-4-sulfonic acid hydrazide
1576-35-8

toluene-4-sulfonic acid hydrazide

dehydroepiandrosterone-17-p-toluenesulfonyl hydrazone
34988-34-6

dehydroepiandrosterone-17-p-toluenesulfonyl hydrazone

Conditions
ConditionsYield
With toluene-4-sulfonic acid In tetrahydrofuran Inert atmosphere; Reflux;98%
With toluene-4-sulfonic acid In tetrahydrofuran Reflux; Inert atmosphere;98%
With toluene-4-sulfonic acid In tetrahydrofuran for 3h; Inert atmosphere;98%
With sulfuric acid In methanol for 5h; Reflux;91.6%
With sulfuric acid In methanol at 15℃; for 2h; Concentration; Reflux;81.4%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

1-(3,4-dichlorophenyl)-1H-1,2,3-triazole-4-carbaldehyde
1325724-92-2

1-(3,4-dichlorophenyl)-1H-1,2,3-triazole-4-carbaldehyde

(E)-16-((1-(3,4-dichlorophenyl)-1H-1,2,3-triazol-4-yl)methylene)-3-hydroxy-10,13-dimethyl-1,3,4,7,8,9,10,11,12,13,15,16-dodecahydro-2H-cyclopenta[a]phenanthren-17(14H)-one

(E)-16-((1-(3,4-dichlorophenyl)-1H-1,2,3-triazol-4-yl)methylene)-3-hydroxy-10,13-dimethyl-1,3,4,7,8,9,10,11,12,13,15,16-dodecahydro-2H-cyclopenta[a]phenanthren-17(14H)-one

Conditions
ConditionsYield
With potassium hydroxide In ethanol for 1h; Reflux;98%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

1-(2-bromophenyl)-4,5-dihydro-1H-1,2,3-triazole-4-carbaldehyde

1-(2-bromophenyl)-4,5-dihydro-1H-1,2,3-triazole-4-carbaldehyde

(E)-16-((1-(2-bromophenyl)-1H-1,2,3-triazol-4-yl)methylene)-3-hydroxy-10,13-dimethyl-1,3,4,7,8,9,10,11,12,13,15,16-dodecahydro-2H-cyclopenta[a]phenanthren-17(14H)-one

(E)-16-((1-(2-bromophenyl)-1H-1,2,3-triazol-4-yl)methylene)-3-hydroxy-10,13-dimethyl-1,3,4,7,8,9,10,11,12,13,15,16-dodecahydro-2H-cyclopenta[a]phenanthren-17(14H)-one

Conditions
ConditionsYield
With potassium hydroxide In ethanol for 1h; Reflux;98%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

C9H6BrN3O

C9H6BrN3O

(E)-16-((1-(3-bromophenyl)-1H-1,2,3-triazol-4-yl)methylene)-3-hydroxy-10,13-dimethyl-1,3,4,7,8,9,10,11,12,13,15,16-dodecahydro-2H-cyclopenta[a]phenanthren-17(14H)-one

(E)-16-((1-(3-bromophenyl)-1H-1,2,3-triazol-4-yl)methylene)-3-hydroxy-10,13-dimethyl-1,3,4,7,8,9,10,11,12,13,15,16-dodecahydro-2H-cyclopenta[a]phenanthren-17(14H)-one

Conditions
ConditionsYield
With potassium hydroxide In ethanol for 1h; Reflux;98%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

1-(2-fluorophenyl)-4,5-dihydro-1H-1,2,3-triazole-4-carbaldehyde

1-(2-fluorophenyl)-4,5-dihydro-1H-1,2,3-triazole-4-carbaldehyde

(E)-16-((1-(2-fluorophenyl)-1H-1,2,3-triazol-4-yl)methylene)-3-hydroxy-10,13-dimethyl-1,3,4,7,8,9,10,11,12,13,15,16-dodecahydro-2H-cyclopenta[a]phenanthren-17(14H)-one

(E)-16-((1-(2-fluorophenyl)-1H-1,2,3-triazol-4-yl)methylene)-3-hydroxy-10,13-dimethyl-1,3,4,7,8,9,10,11,12,13,15,16-dodecahydro-2H-cyclopenta[a]phenanthren-17(14H)-one

Conditions
ConditionsYield
With potassium hydroxide In ethanol for 1h; Reflux;98%
dehydroepiandrosterone
53-43-0

dehydroepiandrosterone

1-(3-fluorophenyl)-4,5-dihydro-1H-1,2,3-triazole-4-carbaldehyde

1-(3-fluorophenyl)-4,5-dihydro-1H-1,2,3-triazole-4-carbaldehyde

(E)-16-((1-(3-fluorophenyl)-1H-1,2,3-triazol-4-yl)methylene)-3-hydroxy-10,13-dimethyl-1,3,4,7,8,9,10,11,12,13,15,16-dodecahydro-2H-cyclopenta[a]phenanthren-17(14H)-one

(E)-16-((1-(3-fluorophenyl)-1H-1,2,3-triazol-4-yl)methylene)-3-hydroxy-10,13-dimethyl-1,3,4,7,8,9,10,11,12,13,15,16-dodecahydro-2H-cyclopenta[a]phenanthren-17(14H)-one

Conditions
ConditionsYield
With potassium hydroxide In ethanol for 1h; Reflux;98%
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