Method for the purification of radiolabelled compounds
US8309054B2 · kind B2 · utility
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4Claims
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Assignee
Inventor
Key dates
| Filing date | Jul 25, 2007 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Oct 3, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B63/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to methods and apparatus for purifying a radiolabelled compound. The method comprises (i) passing a crude reaction mixture comprising the desired radiolabelled compound and one or more contaminants in a solvent through a narrow bore vessel at elevated temperature such that the organic solvent and either the radiolabelled compound or one or more contaminants is vaporised forming a vaporised component, and (ii) collecting the resulting vaporised component by condensing into a collection vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.