| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K31-567
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J41-0016 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J41-00 |
| filingDate |
2004-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_562b9579b28c38de6d330a08b067a410
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ccaa7783356b29d71a515762b4a5b431
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0585f508422be3c8629091acecb1a735
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0ca52bf4c78a884f061198533f01e1c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c0ee7be19e1412eade73bbabb5c5aa1f |
| publicationDate |
2005-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2005032763-A1 |
| titleOfInvention |
Process for the synthesis of high purity D-(17a)-13-ethyl-17-hydroxy-18,19-dinorpregn-4-ene-20-yn-3-one oxime |
| abstract |
The invention relates to a process for the synthesis of d-(17α)-13-ethyl-17-hydroxy-18,19-dinorpregn-4-ene-20-yn-3-one-oxime (also known as norelgestromin) via acetylation of d-norgestrel at position 17; oximation of the oxo group at position 3 of the obtained d-(17α)-13-ethyl-17-(acetyloxy)-18,19-dinorpregn-4-ene-20-yn-3-one; and then hydrolyzing the acetyloxy group at position 17 of the obtained d-(17α)-13-ethyl-17-(acetyloxy)-18,19-dinorpregn-4-ene-20-yn-3-oxime derivative, thereby obtaining norelgestromin. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004266741-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7345183-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006035872-A1 |
| priorityDate |
2003-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |