Bis(pyrrolide-imine) Ti complexes in conjunction with methylalumoxane (MAO) were found to work as efficient catalysts for the copolymerization of ethylene and norbornene to afford unique copolymers via an addition-type polymerization mechanism. The catalysts exhibited very high norbornene incorporation, superior to that obtained with Me(2)Si(Me(4)Cp)(N-tert-Bu)TiCl(2) (CGC). The sterically open and highly electrophilic
IACOBUCCI, GUILLERMO A.;SWEENEY, JAMES G.;KING, JAMES G. (III)
作者:IACOBUCCI, GUILLERMO A.、SWEENEY, JAMES G.、KING, JAMES G. (III)
DOI:——
日期:——
Structure-Based Design of β5c Selective Inhibitors of Human Constitutive Proteasomes
作者:Bo-Tao Xin、Gerjan de Bruin、Eva M. Huber、Andrej Besse、Bogdan I. Florea、Dmitri V. Filippov、Gijsbert A. van der Marel、Alexei F. Kisselev、Mario van der Stelt、Christoph Driessen、Michael Groll、Herman S. Overkleeft
DOI:10.1021/acs.jmedchem.6b00705
日期:2016.8.11
reports the development of highly potent and selective inhibitors of the β5c catalytic activity of human constitutive proteasomes. The work describes the design principles, large hydrophobic P3 residue and small hydrophobic P1 residue, that led to the synthesis of a panel of peptide epoxyketones; their evaluation and the selection of the most promising compounds for further analyses. Structure–activity