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A facile synthesis of suvorexant, an orexin receptor antagonist, is described. The key intermediate 6 was prepared from R-3-aminobutyric acid through protection, condensation, deprotection, cyclization, and hydrogenation steps. The title product was obtained with a total yield of 31% (>99% ee) after eight linear steps using commercially available raw materials.
The solid-state ECL behavior of a water-insoluble bis-cyclometalated (pq) 2 Ir(N-phMA) complex is presented, in which pq is a 2-phenylquinoline anion and N-phMA is N-phenyl methacrylamide, a monoanionic bidentate ligand. The MWNTs/(pq) 2 Ir(N-phMA) film, MWNTs/Ru(bpy) 32+ film and (pq) 2 Ir(N-phMA) directly modified glassy carbon electrode were fabricated; only...
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