| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D317-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D303-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C31-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D317-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P11-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D473-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D473-06 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C21-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P11-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-522
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D303-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-16 |
| filingDate |
1982-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1985-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1985-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0075850-B1 |
| titleOfInvention |
Pharmaceutical preparations containing vicinal dihydroxyalkyl xanthines, process for the preparation of the xanthines and the appropriate intermediates therefor |
| abstract |
Compounds of the formula <IMAGE> (I) wherein one of the radicals R1, R2 or R3 denotes a straight-chain alkyl group having 4 to 8 C atoms and two vicinal hydroxyl groups in the omega , omega -1 or omega -1, omega -2 positions and the two other radicals represent straight-chain or branched alkyl groups having up to 12 C atoms in the position of R1 and R3 and up to 4 C atoms in the position of R2, the total of C atoms in these two alkyl substituents being a maximum of 14, are prepared by oxidation of the corresponding alkenylxanthines and by alkylation with compounds which introduce the dihydroxyalkyl radical or a precursor thereof. The dihydroxyalkyldialkylxanthines are suitable for the treatment of obstructive respiratory tract diseases. |
| priorityDate |
1981-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |