http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-439489-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0ff16e899ce32685c9600075c1cc21 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J7-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J7-00 |
| filingDate | 1975-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-439489-A1 |
| titleOfInvention | PROCEDURE FOR OBTAINING NEW PREGNAN-21-ALDEHI-DOS AND ITS DERIVATIVES. |
| abstract | Procedure for obtaining new pregnan-21-aldehydes and their derivatives of formula **(See formula)** where R1 and R2 together signify an oxo group or, in each case, a free, esterified or etherized hydroxy group, R2 signifies a free or esterized hydroxy group, R4 signifies an oxo group or a hydroxy group in the β position together with a hydrogen atom and one of the residues R5 and R6 signifies a fluorine atom and the other hydrogen or a fluorine atom, characterized in that in a compound of formula **(See formula)** wherein R1, R2, R3 and R6 have the meaning indicated above, the 9β, 11β-epoxy group is cleaved with hydrofluoric acid or hydrofluoric acid cleavage compounds, and if desired, the compounds obtained of formula (I), where R1 and R2 together form an oxo group or at least one of the residues R1 and R2 means a free hydroxy group, it is treated with esterifying or etherifying agents, or the compounds obtained of formula (I), where at least one of the residues R1 and R2 signifies an esterified or ethereal hydroxy group, it is treated with hydrolyzing means, or in the obtained compounds, where R4 signifies a free hydroxy group, this is oxidized to the oxo group. (Machine-translation by Google Translate, not legally binding) |
| priorityDate | 1972-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.