Efficient Synthesis of α-Aryl Esters by Room-Temperature Palladium-Catalyzed Coupling of Aryl Halides with Ester Enolates
作者:Morten Jørgensen、Sunwoo Lee、Xiaoxiang Liu、Joanna P. Wolkowski、John F. Hartwig
DOI:10.1021/ja027643u
日期:2002.10.1
arylation of alpha,alpha-disubstituted esters were developed with LiNCy(2) as base and P(t-Bu)(3) as ligand. In addition, tert-butyl esters, such as those of Naproxen and Flurbiprofen, were prepared from tert-butyl propionate and aryl bromides in high yields in the presence of Pd(dba)(2) and the hindered, saturatedheterocycliccarbene ligand precursor.
[EN] SULFONANILIDE AND BENZYLSULFONYL DERIVATIVES, AND COMPOSITIONS AND METHODS THEREOF<br/>[FR] DÉRIVÉS DE SULFONANILIDE ET BENZYLSULFONYLE, ET COMPOSITIONS ET PROCÉDÉS ASSOCIÉS
申请人:LYSOWAY THERAPEUTICS INC
公开号:WO2022076383A1
公开(公告)日:2022-04-14
The invention provides novel sulfonanilide and benzylsulfonyl derivatives, and compositions and methods of preparation and use thereof, that are useful in treating various diseases and disorders related to TRPML activities such as lysosome storage diseases, muscular dystrophy, age-related common neurodegenerative diseases, oxidative stress or reactive oxygen species (ROS) related diseases, and ageing.
Steroid derivatives for the treatment of prostatic hypertrophy their
申请人:Sankyo Company, Limited
公开号:US05536714A1
公开(公告)日:1996-07-16
The invention includes compounds of formula (I): ##STR1## in which R.sup.1 is hydrogen, alkyl, aryl-substituted alkyl or aromatic heterocyclic-substituted alkyl; R.sup.2 is aryl-substituted alkyl, aromatic heterocyclic-substituted alkyl or diarylamino; and R.sup.3 is carboxy or a group of formula --CONHSO.sub.2 R.sup.4 wherein R.sup.4 is alkyl; and pharmaceutically acceptable salts and esters of the compounds. The compounds have valuable 5.alpha.-reductase inhibitory activity and can thus be used for the treatment and prophylaxis of, inter alia, prostatic hypertrophy as well as other disorders arising from excess levels of 5.alpha.-dihydro-testosterone.
The invented compound ##STR1## is useful for the production of steroidal-17-amides that have 5.alpha.-reductase inhibitory activity.
发明的化合物##STR1##可用于生产具有5α-还原酶抑制活性的类固醇-17酰胺。
Method of making steroid derivatives for the treatment of prostatic
申请人:Sankyo Company, Limited
公开号:US05717088A1
公开(公告)日:1998-02-10
Compounds of formula (I): ##STR1## \x9bwherein: R.sup.1 is hydrogen, alkyl, aryl-substituted alkyl or aromatic heterocyclic-substituted alkyl; R.sup.2 is: aryl-substituted alkyl, aromatic heterocyclic-substituted alkyl or diarylamino; and R.sup.3 is carboxy or a group of formula --CONHSO.sub.2 R.sup.4 wherein R.sup.4 is alkyl!; and pharmaceutically acceptable salts and esters thereof have valuable 5.alpha.-reductase inhibitory activity and can thus be used for the treatment and prophylaxis of, inter alia, prostatic hypertrophy as well as other disorders arising from excess levels of 5.alpha.-dihydrotestosterone.