ステロイドサポゲニン (第4報)

C-11に酸素置換基を有するSpirostaneの合成 その2

抄録

Following the previous work, synthesis of 2, 3-diols of 5β, 25D-spirostane series, substituted with oxygen at 11-position, was attempted and 2α, 3α-diol, 2β, 3β-diol, 2β, 3α-diol, 2α, 3β-diol, and their derivatives were prepared from the corresponding spirost-2-ene derivatives.