METHOD OF MAKING THE 3,3-ETHYLENDIOXY-4,5-SEKO-19-NORANDROST-9-EN-5, 17-DIONE

METHOD OF MAKING THE 3,3-ETHYLENDIOXY-4,5-SEKO-19-NORANDROST-9-EN-5, 17-DIONE

(A process for preparing steroid intermediates of the formula in which pivaloyl chloride is added to a compound of the formula the resulting compound of the formula is reacted with a Grignard reagent of the formula wherein X is Cl or Br, and the resulting compound of the formula is cyclized in the p...

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Hauptverfasser: COOPER,GARY F.,US, VAN HORN,ALBERT R.,US
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
STEROIDS
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creator COOPER,GARY F.,US
VAN HORN,ALBERT R.,US
description (A process for preparing steroid intermediates of the formula in which pivaloyl chloride is added to a compound of the formula the resulting compound of the formula is reacted with a Grignard reagent of the formula wherein X is Cl or Br, and the resulting compound of the formula is cyclized in the presence of a base. Compound I in turn may be readily converted by known methods to valuable steroids. Disclosed as a mixed anhydride steroid intermediate of formula III is 7a beta -methyl-2,3,3a alpha , 4, 5, 6, 7; 7a-octahydro-1H-inden-1,5-dione-4 alpha -(3-propionic acid) pivalic acid mixed anhydride.)
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Compound I in turn may be readily converted by known methods to valuable steroids. Disclosed as a mixed anhydride steroid intermediate of formula III is 7a beta -methyl-2,3,3a alpha , 4, 5, 6, 7; 7a-octahydro-1H-inden-1,5-dione-4 alpha -(3-propionic acid) pivalic acid mixed anhydride.)</description><edition>3</edition><language>eng</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMISTRY ; HETEROCYCLIC COMPOUNDS ; HUMAN NECESSITIES ; HYGIENE ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; ORGANIC CHEMISTRY ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES ; STEROIDS</subject><creationdate>1982</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19820326&amp;DB=EPODOC&amp;CC=CS&amp;NR=212220B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19820326&amp;DB=EPODOC&amp;CC=CS&amp;NR=212220B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>COOPER,GARY F.,US</creatorcontrib><creatorcontrib>VAN HORN,ALBERT R.,US</creatorcontrib><title>METHOD OF MAKING THE 3,3-ETHYLENDIOXY-4,5-SEKO-19-NORANDROST-9-EN-5, 17-DIONE</title><description>(A process for preparing steroid intermediates of the formula in which pivaloyl chloride is added to a compound of the formula the resulting compound of the formula is reacted with a Grignard reagent of the formula wherein X is Cl or Br, and the resulting compound of the formula is cyclized in the presence of a base. Compound I in turn may be readily converted by known methods to valuable steroids. 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Compound I in turn may be readily converted by known methods to valuable steroids. Disclosed as a mixed anhydride steroid intermediate of formula III is 7a beta -methyl-2,3,3a alpha , 4, 5, 6, 7; 7a-octahydro-1H-inden-1,5-dione-4 alpha -(3-propionic acid) pivalic acid mixed anhydride.)</abstract><edition>3</edition><oa>free_for_read</oa></addata></record>
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
STEROIDS
title METHOD OF MAKING THE 3,3-ETHYLENDIOXY-4,5-SEKO-19-NORANDROST-9-EN-5, 17-DIONE
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