A remedy for endometriosis comprising, as an active ingredient, 14.alpha.-hydroxy-4-androstene-3,6,17-trione or an ester derivative thereof, can effectively treat endometriosis by the strong aromatase-inhibitory activity without giving serious side effects.
Process for preparing 14-.alpha.-hydroxy-4-androstene-3,6,17-trione
申请人:Snow Brand Milk Products Co., Ltd.
公开号:US05098535A1
公开(公告)日:1992-03-24
A process for the preparation in high yield of 14.alpha.-hydroxy-4-androstene-3,6,17-trione which has an aromatase inhibition activity and is useful as an antitumor agent, in which the 6.beta.-hydroxyl group of 6.beta., 14.alpha.-dihydroxy-4-androstene-3,17-dione is selectively oxidized with the aid of visible light energy.
A method is disclosed in which filamentous fungi are macerated and encapsulated in an inert matrix to form beads, which can be used to promote reactions carried out by the fungi. The beads are useful, e.g., for producing compounds and compound libraries.
NOVEL ANDROST-4-ENE-3,17-DIONE DERIVATIVES AND PROCESS FOR THEIR PREPARATION
申请人:SNOW BRAND MILK PRODUCTS CO., LTD.
公开号:EP0300062A1
公开(公告)日:1989-01-25
Compounds of formula (1),
H(α)OR(β), Y represents H2 or OH(∇)H(β), Z represents H or OH(α), and R represents H, COCH3, COCH2CH3, COCH(CH3)2 or COC(CH3)3. which are prepared by bringing androst-4-ene-3,17-dione into contact with microorganisms belonging to the genus Acremonium. These compounds are effective in inhibiting estrogen synthetase of human placenta origin.
Process for production of 6beta, 14alpha-dihydroxy-4-androstene-3, 17-dione
申请人:NIPPON KAYAKU KABUSHIKI KAISHA
公开号:EP0599658A2
公开(公告)日:1994-06-01
The invention provides a novel process for the production of 6β,14α-dihydroxy-4-androstene-3,17-dione which comprises culturing a microorganism belonging to the genus Myrothecium and capable of hydroxylating 4-androstene-3,17-dione to produce 6β,14α-dihydroxy-4-androstene-3,17-dione in a medium supplemented with 4-androstene-3,17-dione, and isolating 6β,14α-dihydroxy-4-androstene-3,17-dione from the cultured medium. According to the process of the present invention, 6β,14α-dihydroxy-4-androstene-3,17-dione and 14α-hydroxy-4-androstene-3,6,17-trione can be produced with a high yield in a simple manner.