http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2044923-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d202e9e866984fe229f6facc38f1d740 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-3873 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-38 |
| filingDate | 1991-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1996-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ef124fdde42eab9768663093629bb9b2 |
| publicationDate | 1996-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2044923-C |
| titleOfInvention | Process for preparing 4-amino-1-hydroxy-butylidene-1, 1-bisphosphonic acid (abp) or salts thereof |
| abstract | An improved process is described for the preparation of 4-amino-1-hydroxybutylidene-1,1-bisphosphonic acid (ABP)or salts thereof which comprises: (a) reacting 4-aminobutyric acid with a mixture of phosphorous acid and PC13 in the presence of methanesulfonic acid; (b) contacting the mixture from Step (a) with an aqueous hydrolysis mixture, wherein the pH is maintained in the range of 4 to 10 during the contacting; and (c) recovering said 4-amino-1-hydroxybutylidene-1,1-bisphosphonic acid or salts thereof. |
| priorityDate | 1990-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.