| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_69c91bbf0395db010b4806f50d808c4e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D233-64 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-54 |
| filingDate |
1987-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28ee4820dc0b5210bf3351aa4fc3dcbf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5cbc189f0d2333c294356a2625e839c9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f1ec48c69cc4395925faed9d298b717
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2abbb81e89666719c0cc0eb016126347 |
| publicationDate |
1989-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CH-672314-A5 |
| titleOfInvention |
Cimetidine reformer A prepn. |
| abstract |
Prepn. of the A modification of cimetidine (I-A; N-cyano-N' methyl-N'-(2-((5-methylimidazol- 4-yl)methylthio)ethyl) guanidine) from the H-modification (I-H; also called cimetidine M-1) comprises thermal dehdyration with a flow of gas preheated to 40-110 deg.C. The gas (which may be air, inert gas or N2) is at 60-100 deg.C and dehydration is carried out while maintaining the crystalline state at all times. |
| priorityDate |
1986-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |