http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1417042-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9a2b671a27cf90229eddd2857745685b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D451-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D451-10 |
| filingDate | 1973-03-20^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1975-12-10^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1417042-A |
| titleOfInvention | Process for the preparation of sulphobetaines of alkaloids in a pure state |
| abstract | 1417042 Sulphobetaines of alkaloids LABORATOIRES BIOTHERAX 20 March 1973 [22 March 1972] 13385/73 Heading C2C Sulphobetaines of alkaloids, substantially free from simple alkaloids are prepared by the addition in equimolecular proportions of a sulpholactone of Formula I in which n is a whole number, in a solvent to an alkaloid of the tropine group in solution in the same solvent at a temperature in the range 15‹ to 25‹ C., air-drying the resulting precipitate and subjecting the dried precipitate to a series of washes at 40-60‹ C. with the same solvent as referred to above, the solvent optionally having ammonia of 22‹ B added to it. Preferably n in the formula has a value of 1 to 4. Examples describe the preparation of a sulphobetaine of atropine from atropine and propane sulpholactone. |
| priorityDate | 1972-03-22^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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