中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
(17B)-3-甲氧基雌甾-2,5(10)-二烯-17-醇 | 3-methoxy-17-hydroxyestra-2,5(10)-diene | 1091-93-6 | C19H28O2 | 288.43 |
19-醛固酮雄烯二酮 | 19-oxoandrostenedione | 968-49-0 | C19H24O3 | 300.398 |
雄诺龙 | Stanolone | 521-18-6 | C19H30O2 | 290.446 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
诺龙 | 19-nortestosterone | 434-22-0 | C18H26O2 | 274.403 |
—— | 17β-acetoxy-estr-5(10)-en-3-one | 19906-32-2 | C20H28O3 | 316.441 |
3beta,17beta-二羟基-19-去甲雄甾-5(10)-烯 | (3β,17β)-estr-5(10)-ene-3,17-diol | 4993-32-2 | C18H28O2 | 276.419 |
—— | 5(10)-estrene-3α,17β-diol | 13864-49-8 | C18H28O2 | 276.419 |
17β-羟基雌甾-4,9-二烯-3-酮 | 17β-hydroxyestra-4,9-dien-3-one | 6218-29-7 | C18H24O2 | 272.387 |
—— | 10β,17β-dihydroxy-19-nor-4-androsten-3-one | 2162-39-2 | C18H26O3 | 290.403 |
—— | 17β-hydroxy-10β-mercaptoestr-4-en-3-one | 51101-80-5 | C18H26O2S | 306.469 |
5-二氢-19-去甲睾酮 | 17β-hydroxy-5α-estran-3-one | 1434-85-1 | C18H28O2 | 276.419 |
—— | 17β-hydroxy-5β-estran-3-one | 19468-31-6 | C18H28O2 | 276.419 |
A simple method to distinguish the 5α- from the 5β-isomers of 3-oxosteroids based on low-frequency 1H NMR spectra was proposed. Additional 1H and 13C NMR characteristics were derived from the comparison of completely assigned spectra of the 5α- and 5β-isomers. The effect of substitution at different positions of steroid skeleton was evaluated on a series of isomeric 3-oxosteroids, prepared for this purpose.