98% ee using a strong Brønsted acid as the activator. This methodology was applied in the facile synthesis of biologically active products containing a chiral indoline skeleton. The mechanism of Pd-catalyzed asymmetric hydrogenation was investigated as well. Isotope-labeling reactions and ESI-HRMS proved that an iminium salt formed by protonation of the C═C bond of indoles was the significant intermediate
application of binaphthyl-stabilized palladium nanoparticles (Bin-PdNPs) with chiral modifiers in asymmetric hydrogenation of N-heteroaromatics is revealed. With an appropriate ratio of R-BINAP/Bin-PdNPs used, the pre-prepared chiral nanocatalyst achieves asymmetric hydrogenations of 2-substituted quinolines with good to excellent yields and moderate enantioselectivities, which showed superior catalytic properties
The developments of hydrogensources stand at the forefront of asymmetric reduction. In contrast to the well-studied alcohols as hydrogensources via β-hydride elimination, the direct utilization of the proton of alcohols as a hydrogensource for activator-mediated asymmetric reduction is rarely explored. Herein we report the proton of alcohols as a hydrogensource in diboron-mediated palladium-catalyzed
2-(1H-INDOL-3-YL)-2-OXO-ACETIC ACID AMIDES WITH ANTITUMOR ACTIVITY
申请人:Novuspharma S.p.A.
公开号:EP1322646A1
公开(公告)日:2003-07-02
[EN] 2-(1H-INDOL-3-YL)-2-OXO-ACETIC ACID AMIDES WITH ANTITUMOR ACTIVITY<br/>[FR] AMIDES D'ACIDE ACETIQUE 2-(1H-INDOL-3-YL)-2-OXO A ACTIVITE ANTITUMORALE
申请人:NOVUSPHARMA SPA
公开号:WO2002008225A1
公开(公告)日:2002-01-31
2-(1H-Indol-3-yl)-2-oxo-acetamide derivatives of formula (I) having antitumor activity in particular against solid tumors, specifically colon and lung tumors.