中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
雄酮 | cis-androsterone | 53-41-8 | C19H30O2 | 290.446 |
表雄酮 | Epiandrosterone | 481-29-8 | C19H30O2 | 290.446 |
5a-雄甾烷二酮 | androstanedione | 846-46-8 | C19H28O2 | 288.43 |
11b-羟基-雄甾-4-烯-3,17-二酮 | 11α-hydroxyandrost-4-ene-3,17-dione | 564-33-0 | C19H26O3 | 302.414 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3α,11α-dihydroxy-5α-androstan-17-one | 7801-12-9 | C19H30O3 | 306.445 |
—— | 3β,11α-Dihydroxy-5α-androstan-17-on | 25848-75-3 | C19H30O3 | 306.445 |
3β-(4(5)-Imidazolyl)-5α-androstane-11β,17β-diamine, 15, has been synthesized in a multistep process from adrenosterone, 2, starting with lithium ammonia reduction to give 11α,17β-dihydroxy-5α-androstan-3-one, 3, which was converted to its diacetate, 4. Ethynylation at the 3 keto group gave the ethynyl triol 5, purified as its11,17-diacetate 6. Acid catalyzed rearrangement of 6 gave 3-acetyl-5α-androst-2-ene-11α,17β-diol diacetate, 7. This was hydrogenated, and then subjected to base catalyzed hydrolysis and equilibration to give crystalline 3β-acetyl-5α-androstane-11α,17β-diol, 9, which was converted to 3β-acetoxyacetyl-5α-androstane-11α,17β-diol, 10, using lead tetraacetate. After hydrolysis to the triol, 11, the Weidenhagen reaction led to formation of 3β-imidazolyl-5α-androstane-11α,17β-diol, 12. Finally oxidation to the dione, 13, formation of the dioxime, 14, and hydrogénation give 15. As expected 15 is a better catalyst than 17β-(4(5)-imidazolyl-5α-androstane-3β,11β-diamine, 1, for the hydrolysis of aryl esters of acids with hydrophobic substituents, but the effect is small. With 1 there is a marked electrostatic rate enhancement or retardation when charged groups are present on the aryl esters; this effect is much smaller for 15.
Biotransformations of epiandrosterone (