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18162-48-6872-50-4Methylene ChloridenaphthaleneTHFTitanium Dioxide
3754-63-0

(8'R,9'S,10'R,13'S,14'S)-10',13'-dimethylspiro[1,3-dioxolane-2,3'-2,4,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-one synthesis

8synthesis methods
(8R,9S,10R,13S,14S,17R)-17-hydroxy-10,13-dimethyl-1,2,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolane]-17-carbonitrile

83196-58-1
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(8'R,9'S,10'R,13'S,14'S)-10',13'-dimethylspiro[1,3-dioxolane-2,3'-2,4,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-one

3754-63-0
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Yield:3754-63-0 100%

Reaction Conditions:

with potassium hydroxide in methanol;dichloromethane at 20; for 2 h;

References:

Andryushina, V. A.;Morozova, L. S.;Grinenko, G. S. [Pharmaceutical Chemistry Journal,1987,vol. 21,# 12,p. 883 - 884][Khimiko-Farmatsevticheskii Zhurnal,1987,vol. 21,# 12,p. 1469 - 1471]

(8R,9S,10R,13S,14S,17S)-10,13-dimethylspiro[1,2,4,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthrene-3,2'-1,3-dioxolane]-17-ol

975-57-5
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(8'R,9'S,10'R,13'S,14'S)-10',13'-dimethylspiro[1,3-dioxolane-2,3'-2,4,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-one

3754-63-0
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References
Androst-5-ene-3,17-dione, cyclic bis(1,2-ethanediyl acetal)

4966-70-5
1 suppliers
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(8'R,9'S,10'R,13'S,14'S)-10',13'-dimethylspiro[1,3-dioxolane-2,3'-2,4,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-one

3754-63-0
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References
58-22-0 Synthesis
Testosterone

58-22-0
409 suppliers
$21.00/1mg

(8'R,9'S,10'R,13'S,14'S)-10',13'-dimethylspiro[1,3-dioxolane-2,3'-2,4,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-one

3754-63-0
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References
63-05-8 Synthesis
Androstenedione

63-05-8
286 suppliers
$32.00/1mg

107-21-1 Synthesis
Ethylene glycol

107-21-1
1377 suppliers
$10.00/25g

(8'R,9'S,10'R,13'S,14'S)-10',13'-dimethylspiro[1,3-dioxolane-2,3'-2,4,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-one

3754-63-0
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References