http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04120092-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b43145c29c8b04e30a9039f61036c07d |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J71-00 |
| filingDate | 1990-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_58c18811ea52bc10fecb3431ad0a724b |
| publicationDate | 1992-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H04120092-A |
| titleOfInvention | Steroid compound |
| abstract | NEW MATERIAL:A compound of formula I (R 1 -R 4 are H, OH-protecting group; A is >N-Ar 2 , 0-phenylene; X is H, acyl ; Ar 1 , Ar 2 are aryl). n USE: An intermediate for synthesizing 1,25-dihydroxy vitamin D 3 26,23-lactone. n PREPARATION: A compound of formula II (R 11 , R 21 are H, OH-protecting group) is reacted with a compound of formula III preferably in a molar ratio of 1:0.5-20 in the presence of a basic substance such as n-butyl lithium. The reaction is preferably performed in a solvent such as diethyl ether at a temperature of -80 to 20°C. n COPYRIGHT: (C)1992,JPO&Japio |
| priorityDate | 1990-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.