[EN] SYNTHESIS OF ANTI-ESTROGENIC AND OTHER THERAPEUTIC STEROIDS FROM 21-HYDROXY-19-NORPREGNA-4-EN-3-ONE<br/>[FR] SYNTHESE DE STEROIDES ANTI-OESTROGENIQUE ET D'AUTRES STEROIDES THERAPEUTIQUES ISSUS DE 21-HYDROXY-19-NORPREGNA-4-ENE-3-ONE
申请人:STANFORD RES INST INT
公开号:WO2001058919A2
公开(公告)日:2001-08-16
Syntheses of steroids such as 3-hydroxy-7α-methyl-21-[2'-methoxy-4'-(diethylaminomethyl)-phenoxy]-19-norpregna-1,3,5(10)triene citrate ('SR 16234') and analogs thereof are provided, wherein 21-hydroxy-19-norpregna-4-en-3-one serves as a starting material or intermediate. The latter compound may be readily prepared from estrone-3-methyl ether. Certain intermediates in these syntheses also have value as therapeutic agents, for example in the treatment of prostate disorders such as prostatic cancer.