Nouveaux inhibiteurs de métalloprotéases, leur procédé de préparation et les compositions pharmaceutiques qui les contiennent
申请人:ADIR ET COMPAGNIE
公开号:EP1065209A1
公开(公告)日:2001-01-03
Composés de formule (I) :
dans laquelle :
R1représente un atome d'hydrogène, d'halogène, un groupement alkyle ou alkoxy,
R2représente un groupement hydroxy, alkoxy ou -NHOH,
Ar1représente un groupement phénylène ou biphénylène,
Xreprésente un atome d'oxygène, de soufre, un groupement NR, un groupe -CO≡C- ou une liaison,
Rreprésente un atome d'hydrogène ou un groupement alkyle,
nreprésente un nombre entier compris entre 0 et 6 inclus,
Ar2représente l'un quelconque des groupements tels que définis dans la description,
leurs isomères ainsi que leurs sels d'addition à un acide ou à une base pharmaceutiquement acceptable.
Médicaments.
PHOTOREDOX-CATALYZED DIRECT C-H FUNCTIONALIZATION OF ARENES
申请人:THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
公开号:US20180148414A1
公开(公告)日:2018-05-31
The invention generally relates to methods of making substituted arenes via direct C—H amination. More specifically, methods of making para- and ortho-substituted arenes via direct C—H amination are disclosed. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
US6339092B1
申请人:——
公开号:US6339092B1
公开(公告)日:2002-01-15
Cascade Synthesis of Pyrroles from Nitroarenes with Benign Reductants Using a Heterogeneous Cobalt Catalyst
A bifunctional 3d‐metal catalyst for the cascade synthesis of diverse pyrroles from nitroarenes is presented. The optimal catalytic system Co/NGr‐C@SiO2‐L is obtained by pyrolysis of a cobalt‐impregnated composite followed by subsequent selective leaching. In the presence of this material, (transfer) hydrogenation of easily available nitroarenes and subsequent Paal–Knorr/Clauson‐Kass condensation provides
A compound selected from those of the formula (I):
wherein:
R1 represents hydrogen or halogen, or alkyl or alkoxy,
R2 represents hydroxy, alkoxy or —NHOH,
Ar1 represents phenylene or biphenylene,
X represents oxygen or sulphur, NR, —C≡C— or a bond,
R represents hydrogen or alkyl,
n is an integer from 0 to 6 inclusive,
Ar2 represents any one of the groups as defined in the description,
its isomers and addition salts thereof with a pharmaceutically-acceptable acid or base, and medicinal products containing the same which are useful as metalloprotease inhibitors.