Abstract
Spin-labelled lipids are used in electron spin resonance (ESR) spectroscopy for studying microenvironments within biological membranes. Various classes are available, based on the use of N-oxyldimethyloxazolidinyl (or similar groups) as spin label. The synthesis is described of a new type of spin-labelled lipid, in which a monoacylglycerol is the lipid moiety. This compound was obtained (in 58% yield of theory) by reacting 12-( N-oxyldimethyloxazolidinyl)stearic acid with glycidol in aqueous sodium chloride at 90°C. The product was uniform on TLC and its identity was confirmed by IR and ESR spectroscopy.
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