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The chemistry of copper is extremely rich because it can easily access Cu0, CuI, CuII, and CuIII oxidation states allowing it to… Expand The synthesis of pharmaceutically active compounds bearing a disubstituted piperidine framework is reviewed. Due to their… Expand Although tertiary phosphines have emerged as remarkably versatile nucleophilic catalysts, there has been only very limited… Expand We have developed an efficient catalytic enantioselective hydrogenation of pyridine derivatives. Enhanced reactivity was possible… Expand A new iron(III) halide-promoted aza-Prins cyclization between γ,δ-unsaturated tosylamines and aldehydes provides six-membered… Expand Mosquito larvicidal activity of Piper longum fruit-derived materials against the fourth-instar larvae of Aedes aegypti was… Expand Remifentanil is a newly synthesized 4-anilidopiperidine with an ester side chain susceptible to esterase metabolism. We evaluated… Expand The chemical reactivity of thymine (T), when mismatched with the bases cytosine, guanine, and thymine, and of cytosine (C), when… Expand Four persons developed marked parkinsonism after using an illicit drug intravenously. Analysis of the substance injected by two… Expand DNA can be sequenced by a chemical procedure that breaks a terminally labeled DNA molecule partially at each repetition of a base… Expand