http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1321722-A

Outgoing Links

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assignee http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4acae202b6a15394281949545e70d2f6
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http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-57
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http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J71-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J7-00
filingDate 1971-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationDate 1973-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber GB-1321722-A
titleOfInvention Delta9-11-steroids and processes for their preparation
abstract 1321722 #<SP>9(11)</SP>-Steroids ROUSSEL-UCLAF 19 April 1971 [4 March 1970] 22969/71 Heading C2U The invention comprises 3-ketal-5α,17α-dihydroxypregn-9(11)-en-20-ones; their preparation from 3-ketal-5α,10α-epoxy-17α-trialkylsiloxy-17#-cyanoestr-9(11)-enes (see Specification 1,321,723) by reaction with a methyl magnesium halide followed by hydrolysis; and their conversion into 17α-hydroxypregna-4,9(11)-diene- 3,20-dione by reaction with an acid agent, preferably a sulphonic resin in the acid form.
priorityDate 1970-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date>
type http://data.epo.org/linked-data/def/patent/Publication

Incoming Links

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Total number of triples: 25.