[EN] GOLD COMPOUNDS AND THEIR USE IN THERAPY<br/>[FR] COMPOSÉS D'OR ET LEUR UTILISATION DANS LE CADRE D'UNE THÉRAPIE
申请人:AUSPHERIX LTD
公开号:WO2018220171A1
公开(公告)日:2018-12-06
Compound of formula (I) and pharmaceutically acceptable salts and solvates thereof are described, wherein: Px selected from (P1), (P2) or (P3); The compounds are useful in the prevention or treatment of a bacterial infection.
2‐endo‐substituted and 2‐endo,N‐fused bi‐ and tricyclic bispidines. The new diamines were evaluated as the chiral ligands in asymmetricHenryreactions. Excellent enantioselectivities of up to 99 % ee and good diastereomeric ratios of up to 86:14 were reached with a copper(II) complex modified by a 2‐endo,N‐(3,3‐dimethylpyrrolidine)‐annelated bispidine. Its performance is superior to that of the well‐known bispidines
Parallel and Modular Synthesis of P-Chirogenic <i>P,O</i>-Ligands
作者:Magnus J. Johansson、Susanne Berglund、Yinjun Hu、Kristian H. O. Andersson、Nina Kann
DOI:10.1021/co2002119
日期:2012.5.14
A modular synthesis of P-chirogenic α-alkoxyphosphine ligands has been developed, allowing for the variation of two of the three groups on phosphorus. Oxidation and concomitant desymmetrization of a prochiral alkyl- or aryldimethylphosphine borane afforded α-hydroxyphosphines, which were subsequently deprotonated and alkylated in a parallel fashion. The choice of base and temperature for the alkylation
BisP* moieties as ligands revealed extremely high enantioselectivities − 99% (9b) and 98% (9e) − when the trisubstituted and tetrasubstituted dehydro-α-amino acid derivatives 8b and 8e, respectively, were used as substrates. It was found that unsymmetrical BisP* species tended to exhibit higher enantioselectivity than C2-symmetrical BisP* species in the Rh-catalyzedhydrogenation of (Z)-dehydro-β-amino
P-Chirogenic phosphine/sulfide hybrid ligands 1 were prepared by the use of optically active phosphine-boranes as the intermediates. The palladium complexes of the ligands exhibited high catalytic activity and enantioselectivity in allylic alkylation of 1-acetoxy-1,3-diphenylprop-2-ene with malonate esters.