Synthesis of lichesterol [ergosta-5,8(9),22-trien-3β-ol]

Abstract

Ergosta-5,8(9),22-trien-3β-ol has been synthesized and its identity with lichesterol has been confirmed. Ergosteryl acetate was transformed into 7α-[NN′-bis(ethoxycarbonyl)hydrazino]ergosta-5,8(9), 22-trien-3β-yl acetate which was converted into lichesterol by reduction with lithium in ethylamine

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