http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2800064-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bba842fc4d37dfcaced1b55bc0c91c7c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07K5-0222 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D498-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07K5-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-16 |
| filingDate | 1978-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2087d8ae1c7775626d6db6bc4a770f2d |
| publicationDate | 1979-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2800064-A1 |
| titleOfInvention | PROCESS FOR THE PRODUCTION OF 2-AMINO-3,6-DIOXO-OCTAHYDRO-8H-OXAZOLO SQUARE CLAMP ON 3.2 ANGLE BRACKET FOR PYRROLO SQUARE BRACKET ON 2.1 C ANGLE BRACKET FOR PYRAZINE DERIVATIVES |
| abstract | Prepn. of 2-amino-3,6-dioxo-octahydro-8H-oxazolo 3,2-a pyrrolo 2,1-p pyrazi- ne derivs. of formula (I) is carried out by cyclising a tripeptide of formula (II). In the formulae, R1-5 are inert radicals and R6 is a leaving gp.; pref. R1 is a protecting gp. or a lysergic acid residue; R2 is 1-4C alkyl; R3 and R5 are H or 1-4C alkyl; R4 is H, alkyl, phenyl, benzyl or alkoxybenzyl; R6 is N-succimidoxy or opt. substd. phenoxy or phenylthio. Cpds. (I) are useful as intermediates for the synthesis of ergot alkaloids, e.g. dihydroergotamine and dihydroergonine. |
| priorityDate | 1978-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 64.