http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5738799-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-575 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P3-02 |
| filingDate | 1980-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c25440c1c5dd4b2cc880a922187f5f52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e4d21366bb786f5d87e4d17295c2a5dd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6576e2785f80ae0855620bb32a298632 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f67982bde3d5f809f99a870890a3dc7 |
| publicationDate | 1982-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5738799-A |
| titleOfInvention | 25-hydroxy-3,24-dioxocholesta-1,4,6-trienes and their preparations |
| abstract | NEW MATERIAL:A 25-hydroxy-3,24-dioxochelesta-1,4,6-triene shown by the formula I (R is H or OH-protecting group). n EXAMPLE: 25-Acetoxy-3,24-dioxocholesta-1,4,6-triene. n USE: An intermediate for an active type vitamin D 3 (e.g, 1α,24,25-trihydroxy VD 3 or 1α, 25-dihydroxy-24-oxo VD 3 ). n PROCESS: A 3α-25-dihydroxy-24-oxocholesto-5-ene shown by the formula II is reacted with 2,3-dichloro-5,6-dicyanobenzoquinone in an inert solvent(e.g., hexane, THF, etc.), and, if necessary, the protecting group(e.g., acyl) is removed to give a compound shown by the formula I. The reaction is carried out using 2,3-dichloro-5,6- dicyanobenzoquinone in an amount 1W10 times as much as the equivalent of the compound shown by the formula II at 70W200°C for 1W50 hours. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0748954-Y2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01157887-U http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59160094-A |
| priorityDate | 1980-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.