Phenethanolamine-derived haptens, immunogens, antibodies and conjugates
US7192722B2 · kind B2 · utility
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27Claims
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Key dates
| Filing date | Nov 10, 2005 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Dec 29, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/13
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method for preparing haptens of formulae I and II that are useful in the preparation of immunogens, antibodies and conjugates, for use in competitive immunoassays for the detection of ractopamine, isoxsuprine and ritodrine. The haptens are prepared by reacting a phenylethanolamine derivative of formula D with a phenylalkylcarbonyl derivative of formula E:in which, in formula I, Z1 is a crosslinker and Z2 is H and, in formula II, Z1 is H and Z2 is a crosslinker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.