| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14027934d8abec4fdb94fed05bbfd13f |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-33 |
| filingDate |
1983-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e9369bf0b9b6bc11403ccb130cbf03b0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_43e8a47a169997d57df7062f96c6918f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72ddfe26801231ea1757d687d8d5d7d0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8944fb8e834a4df7f3367030efc7093c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00041f0f5fa0bb09c7f993e68fefd14e |
| publicationDate |
1987-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
HU-191536-B |
| titleOfInvention |
Process for producing /-+/-5-oxo-20-deethyl-catharantine derivatives and their anellative isomeres |
| abstract |
(+-)-5-oxo-20-desethyl-catharanthine derivs. of formula (Ia) and their annellation isomers of formula (Ib), produced in the same reaction are prepd. by the cycloaddition of a 2-halo-acrylic-acid-halide of formula (III) to an N-aralkoxy-carbonyl-1,2-dihydroxy-pyridine of formula (II) removing the protective gp. from the nitrogen of the resulting cpd. of formula (IV), acylating the resulting cpd. of formula (V) and subjecting the resulting cpd. of formula (VI) to photochemical ring-closure. |
| priorityDate |
1983-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |