Stereo-chemistry of Steroids Containing Aromatic A-Ring. III. Hydrogenation of 11β-Hydroxy-&lrtri;<SUP>8</SUP>-dehydroestrone.
作者:Kyosuke Tsuda、Shigeo Nozoe、Yutaka Okada
DOI:10.1248/cpb.11.1271
日期:——
Reduction of the ⊿8-double bond in 3, 11β-dihydroxyestra-1, 3, 5 (10), 8-tetraen-17-one (II) was carried out. Catalytic hydrogenation of II occurred from rear side and afforded the compound having 8α, 9α-configuration, which was assigned in consideration of its resistance to acetylation and by leading to 9 (11)-dehydro-8-isoestrone methyl ether, whereas reduction of II with lithium in liquid ammonia afforded estradiol.
对 3,11β-二羟基雌甾-1,3,5 (10),8-四烯-17-酮(II)中的⊿8-双键进行了还原。考虑到其抗乙酰化性,并通过生成 9 (11)-dehydro-8-isoestrone methyl ether,将 II 从后侧进行催化氢化,得到了具有 8α、9α-构型的化合物,而在液氨中用锂还原 II 则得到了雌二醇。