oxygen functions at position 8 or 9, or both, are prepared from des-AB-cholest-8-ene or from des-AB-cholestane-8β,9α-diol. They include the two title compounds, required for the total synthesis of tachysterol3 and precalciferol3, respectively.
几个沙漠AB -cholestane衍
生物,在位置8或9,或两者携带氧的功能,是从沙漠制备AB -cholest -8-烯或从沙漠AB -cholestane-8β,9α二醇。它们包括两种标题化合物,为
速甾醇的全合成所需的3和precalciferol 3分别。