Abstract
AbstractMethods for the preparation of useful spin‐labeled neutral lipids are described. A spin‐labeled triglyceride has been prepared by acylation of 1,3‐distearoylglycerol with stearic acid anhydride bearing the 4′,4′‐dimethyloxazolidine‐N‐oxyl ring at carbon‐12. The same fatty acid anhydride has been used to acylate the 3‐hydroxy group of cholesterol to obtain a cholesteryl ester with the nitroxyl function in the fatty acyl chain. The 4′,4′‐dimethyloxazolidinyl‐1‐oxyl derivative of 5α‐an drostan‐3‐one‐17β‐ol has been esterified with stearic acid anhydride to obtain a steroid ester with the paramagnetic center in the steroid nucleus.
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