A novel process for making estra-4,9(10)-diene-3,17-dione steroids from readily available 19-nor-androst-4-ene-3-one steroids by a straightforward three-step process. Products of this process are important intermediates in the preparation of biologically active substances.
Molecular Engineering of Metal–Organic Layers for Sustainable Tandem and Synergistic Photocatalysis
作者:Yingjie Fan、Haifeng Zheng、Steven Labalme、Wenbin Lin
DOI:10.1021/jacs.2c12599
日期:——
Metal–organic layers (MOLs), a monolayered version of metal–organic frameworks (MOFs), have recently emerged as a novel two-dimensional molecular material platform to design multifunctional catalysts. MOLs inherit the intrinsic molecular tunability of MOFs and yet have more accessible and modifiable building blocks. Here we report molecular engineering of six MOLs via modulated solvothermal synthesis
Novel 11-aryloestrane and 11-arylpregnane derivatives
申请人:AKZO N.V.
公开号:EP0289073A1
公开(公告)日:1988-11-02
The present invention is concerned with 11-aryloestrane and 11-arylpregnane derivatives, characterized in that these derivatives have the following structure:
wherein
R₁ is an aryl group with an -N-
group as substituent, X and Y each being separat H or a (1- 4C) hydrocarbon radical or together a (2-6 C) hydrocarbon radical;
R₂ is an alkyl group containing 1-4 carbon atoms;
R₃ is H, OH, a saturated or unsaturated hydrocarbon radical containing 1-8 carbon atoms, at least provided with a hydroxyl, oxo, halogen, azido or nitrile group; an acyloxy or an alkoxy group;
R₄ is a hydroxyl, an acyloxy or an alkoxy group or an acyl group optionally provided with a hydroxyl, alkoxy, acyloxy or halogen group; or R₃ and R₄ together form a ring system; and
R₅ is a hydrocarbon group containing 1-4 carbon atoms, and further with processes for the preparation of these compounds and with pharmaceutical preparations comprising these compounds. The compounds according to the present invention exhibit antiprogestin activity.
This invention relates the use of cortisol blockers (glucocorticoid receptor [GR] antagonists) for the prevention of addiction induced anxiety and withdrawal side effects as a therapeutic and in concert with a diagnostic. Such addictions could be, but are not limited to, alcohol, drugs, caffeine, sugar, food, nicotine, etc.