H Shimoirisa

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6beta-Bromomethyl-19-norcholest-5(10)-en-3beta-ol (NCL-6-Br) was synthesized directly from cholest-5-ene-3beta,19-diol 19-toluene-p-sulfonate via homoallylic rearrangement with ammonium bromide or sodium bromide in acetonitrile. This method was applied to the radiolabeling of NCL-6-Br with bromine-82. Tissue distribution of bromine-82 labeled NCL-6-Br(More)
6 BETA-Iodomethyl-19-norsitost-5(10)-en-3 beta-ol (V) was synthesized by homoallylic rearrangement of 19-iodositost-5-en-3 beta-ol (IV), which was obtained by the hydrolysis of 19-iodositost-5-en-3 beta-ol acetate (III) derived from the displacement of sitost-5-ene-3 beta, 19-diol 3-acetate 19-p-toluenesulfonate (I) with sodium iodide in isopropanol. The(More)
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