Stereoselective Synthesis and Evaluation of C6″-Substituted 5a-Carbasugar Analogues of SL0101 as Inhibitors of RSK1/2
作者:Mingzong Li、Yu Li、Katarzyna A. Ludwik、Zachary M. Sandusky、Deborah A. Lannigan、George A. O’Doherty
DOI:10.1021/acs.orglett.7b00945
日期:2017.5.5
A convergent synthesis of 5a-carbasugar analogues of the n-Pr-variant of SL0101 is described. The analogues were synthesized in an effort to find compounds with potent in vivo efficacy in the inhibition of p90 ribosomal s6 kinase (RSK1/2). The synthesis derived the desired C-4 L-rhamnose stereochemistry from quinic acid and used a highly selective cuprate addition, NaBH4 reduction, Mitsunobu inversion
A Stereoselective Approach to Functionalized Cyclohexenones
作者:Anne C. Meister、Paul F. Sauter、Stefan Bräse
DOI:10.1002/ejoc.201300752
日期:2013.11
A catalytic enantioselective approach to 4-hydroxy-6-methylcyclohex-2-enones is presented herein. The stereogenic information is generated through a copper-catalyzed 1,4-addition to p-benzoquinone monoketal using a chiral, BINOL-based (BINOL = 1,1′-bi-2-naphthol) phosphane ligand, according to the procedure of Feringa et al. A CBS (Corey–Bakshi–Shibata) reduction of the 1,4-adducts gave the four possible