Predicate |
Object |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D491-048 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D491-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D491-052 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B53-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-056 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-048 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-04 |
filingDate |
1990-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
1999-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89c73a95270144ff772eec95e7c0cf15 |
publicationDate |
1999-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
CA-2021737-C |
titleOfInvention |
Asymmetric synthesis of furo ¬3,4-c| pyridine derivatives |
abstract |
The invention relates to a method for the preparation of a non-racemic furo [3,4-c] pyridine derivatives of the formula I (see fig. I) wherein R1, R2 and R3 stand for various substituents, comprising adding a concentrated strong acid to a solution of a non-racemic compound of the formula II (see fig. II) in an amount sufficient to catalyse a deprotection/cyclodehydratation. |
priorityDate |
1989-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |