Discovery and hit-to-lead optimization of novel allosteric glucokinase activators
摘要:
We report on a hit generation and hit-to-lead program of a novel class of glucokinase activators (GKAs). Hit compounds, activators at low glucose concentration only were identified by vHTS. Scaffold modification reliably afforded activators also at high substrate level. Potency was increased by introduction of a hydrogen bond acceptor as proposed by molecular docking. Replacement of the initial alkylene linkers with a rigid 1,2-phenylene motif followed by further studies eventually furnished a series of potent lead compounds exhibiting steep SAR. (C) 2011 Elsevier Ltd. All rights reserved.
Rhodium-catalyzed synthesis of 2,3 – Disubstituted N -methoxy pyrroles and furans via [3+2] cycloaddition between metal carbenoids and activated olefins
the synthesis of 2-substituted N-alkoxy pyrrole 3-carboxylate and furan 3-carboxylate via Rh-catalyzed [3+2] cycloaddition between α-diazo oxime ether or α-diazo carbonyl compounds with vinyl equivalents in a one-pot process. We have demonstrated ethyl vinyl ether as well as vinyl acetate as vinyl equivalents and both were found to give excellent yields. We have also demonstrated the synthesis of N-alkoxy