http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CR-9669-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_132aa5ddba376cda52c2bedb26765245 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J53-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J53-008 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J53-00 |
| filingDate | 2008-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83476e2f76c2a04d52a05cf79941fb74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e395f54ffa3656c8f41b4de7dbb8104d |
| publicationDate | 2008-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CR-9669-A |
| titleOfInvention | PROCESS TO PRODUCE 3-OXO-PREGN-4-ENO-21, 17 CARBOLACTONES BY METAL FREE OXIDATION OF 17- (3-HYDROXIPROPIL) -3,17-DIHYCROXYANDROSTANS |
| abstract | This invention relates to processes for producing 3-oxo-pregnan-21.17-carbolactones of formula II, as well as 3-oxo-pregn-4-eno-21, 17-carbolactones of formula III by metal-free oxidation of 17 - (3-hydroxypropyl) -3,17-dihydroxyandrostanes of formula I In addition, the invention relates to the hemisolvate in dichloromethane of 6b, 7b; 15b, 16b-dimethylene-3-oxo-17a-pregnan-5b-ol-21, 17- carbolactone (iv) as well as a process to produce drospirenone |
| priorityDate | 2005-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.