| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79751aeaa9923745648e5ae7d9c35782 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D491-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D495-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C323-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D405-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D335-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-052
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D495-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D335-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D405-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-58 |
| filingDate |
1985-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1988-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08c81f2228ab5c2b37037e532af6edcc |
| publicationDate |
1988-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4721787-A |
| titleOfInvention |
Process for the preparation of benzo-(pyrano and thiopyrano)-pyridines |
| abstract |
A process for the preparation of a compound of the formula <IMAGE> (I) having a trans 4a,10b-ring junction wherein X represents oxygen or sulfur; ring A is substituted by lower alkoxy; R represents lower alkyl; R1-R5 represent hydrogen; which comprises (a) condensing the corresponding 2H[1]-benzopyran-3-one with the corresponding carboxy protected 3-aminopropanoic acid, (b) reducing and dehydrating the resultant product, and reducing the resulting double bond to a compound of formula I. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012037634-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5144030-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4835276-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006074198-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8735578-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5264373-A |
| priorityDate |
1984-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |