New synthesis of estradiol from androsta-1,4-diene-3,17-dione
作者:L. L. Vasiljeva、P. M. Demin、D. M. Kochev、M. A. Lapitskaya、K. K. Pivnitsky
DOI:10.1007/bf02496187
日期:1999.3
in androsta-1,4-diene-3,17-dione, available from sterols by means of the microbiological degradation of the side chain, was developed. The method consists of the reduction of androsta-1,4-diene-3,17-dione to the corresponding dienediol followed by double C,O-deprotonation of ring A, accompanied by expulsion of the 19-methyl group and formation of estradiol in a high yield.
开发了一种新方法,用于通过侧链的微生物降解从甾醇中获得的 androsta-1,4-diene-3,17-dione 中的 A 环芳构化。该方法包括将 androsta-1,4-diene-3,17-dione 还原为相应的二烯二醇,然后对 A 环进行双 C,O-去质子化,同时排出 19-甲基并在其中形成雌二醇。高产。
Antiandrogens with marginal agonist activity and methods of use
申请人:——
公开号:US20040242618A1
公开(公告)日:2004-12-02
The instant invention provides potent antiandrogen compounds, such as 3&bgr;-acetoxyandrost-1,5-diene-17-ethylene ketal and 3&bgr;-hydroxyandrost-1,5-diene-17-ethylene ketal, and methods for their use in the prevention and treatment of biological conditions mediated by androgen receptors. Thus, for example, compounds of the invention are useful in the prevention and treatment of prostrate cancer. Furthermore, it has been discovered that compounds of the invention are useful in the prevention and treatment of androgen-independent cancers such as androgen-independent prostrate cancer. Finally, inventive compounds may be used to treat antiandrogen induced withdrawal syndrome.
The instant invention provides potent antiandrogen compounds, such as 3β-acetoxyandrost-1,5-diene-17-ethylene ketal and 3β-hydroxyandrost-1,5-diene-17-ethylene ketal, and methods for their use in the prevention and treatment of biological conditions mediated by androgen receptors. Thus, for example, compounds of the invention are useful in the prevention and treatment of prostrate cancer. Furthermore, it has been discovered that compounds of the invention are useful in the prevention and treatment of androgen-independent cancers such as androgen-independent prostrate cancer. Finally, inventive compounds may be used to treat antiandrogen induced withdrawal syndrome.
The instant invention provides potent antiandrogen compounds, such as 3β-acetoxyandrost-1,5-diene-17-ethylene ketal and 3β-hydroxyandrost-1,5-diene-17-ethylene ketal, and methods for their use in the prevention and treatment of biological conditions mediated by androgen receptors. Thus, for example, compounds of the invention are useful in the prevention and treatment of prostrate cancer. Furthermore, it has been discovered that compounds of the invention are useful in the prevention and treatment of androgen-independent cancers such as androgen-independent prostrate cancer. Finally, inventive compounds may be used to treat antiandrogen induced withdrawal syndrome.