19-nor-17α-ethinyl-Δ4-androstene-3,17β-diol (IIb), Δ4-pregnen-3β-ol-20-one (VIa) and Δ4-pregnene-3β,21-diol-20-one diacetate (XIX) are described. These 3β-hydroxy analogues of steroidal hormones were found to be biologically active when assayed in animals.
的合成17α
乙炔基Δ 4雄甾-3β,17β二醇(IIa)中,19-去甲17α
乙炔基Δ 4雄甾烯3,17β二醇(IIb)中,Δ 4 -pregnen-3β醇-20酮(VIa)和Δ 4 -pregnene-3β,21
-二醇-20-酮二
乙酸盐(XIX)中描述。当在动物中进行测定时,发现甾族激素的这些3β-羟基类似物具有
生物活性。