http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-910218-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4acae202b6a15394281949545e70d2f6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D459-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D459-00 |
| filingDate | 1961-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1962-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-910218-A |
| titleOfInvention | New yohimbane derivatives and their preparation |
| abstract | The invention comprises compounds of the formula:- <FORM:0910218/IV (b)/1> (in which R1 represents a halogen atom or an alkoxy group and R2 represents a hydrogen atom or an acyl group) salts thereof, and a process for their preparation by subjecting a lactone of formula:- <FORM:0910218/IV (b)/2> to isobutanolysis, preferably with isobutanol in the presence of sodium isobutylate, and if required esterifying the 18b -hydroxy group of the resulting isobutyl ester, e.g. with a 3,4,5-trimethoxybenzoic, 3,4,5-trimethoxycinnamic, or syringic acid derivative, preferably in the presence of pyridine and triethylamine. |
| priorityDate | 1960-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.