Abstract
AbstractA synthesis of [24‐3H] (24S)‐cholest‐5‐ene‐3β, 24‐diol (cerebrosterol) in 12.1% radiochemical yield and of its 24‐epimer has been achieved by sodium borotritide reduction of 3β‐hydroxycholest‐5‐en‐24‐one derived from 3β‐hydroxychol‐5‐enic acid by an improved procedure. The epimeric 3β, 24 diols were separated as the dibenzoate esters, for which circular dichroism data are presented in support of the assigned absolute stereochemistry.
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