| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_653f9257c50294bdfcbed42ffbba97bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4df528a427f4bc7e35e5ccd29156f460
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e522ef22f01c13cd40d52aaee98332c4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5053f82a7cd17c60822674b657cfb89e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D473-18 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-18 |
| filingDate |
2007-03-20^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2012-12-04^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e962f894e538db01f1e54505e5d2e32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45a2b80f058af1711ddc78ae2bfdb048
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_92cd5abb506d176822e4107f84513b98 |
| publicationDate |
2012-12-04^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8324381-B2 |
| titleOfInvention |
Preparation of ester of purine derivatives |
| abstract |
A process for the preparation of valganciclovir with triacetyl ganciclovir (V) as a starting material, comprising the following steps: selective hydrolysis, reacting with a coupling agent and CBZ valine and a solvent, followed by hydrolysis under basic conditions and hydrogenolysis in the presence of a catalyst. |
| priorityDate |
2006-03-21^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |