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Showing 1 to 4 of 4 for “"Piperidine alkaloids"”.
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Alpha-lithioamine synthetic equivalents from N-Boc secondary amines: Piperideine, pyrrolidine, and perhydroazepine
… from unactivated cyclic secondary amines; piperidine, pyrrolidine, and perhydroazepine to provide $\alpha$-lithioamine synthetic equivalents. The Boc group can be easily introduced on the nitrogen, stable to strong alkyllithium bases, and easily cleaved after elaborations. Determination of …
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(--)-Sparteine Mediated Asymmetric Synthesis Through Conjugate Addition of Allylic and Benzylic Organolithium Species: Development of a Methodology and Its Application Toward a Total Synthesis
… with N-protected pyridones are precursors to piperidine alkaloids. Moreover, this reaction has been applied as the key step in the total synthesis of an immediate precursor to the indolizidine alkaloid castanospermine.
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Cytotoxic Alkaloids from Microcos paniculata with Activity at Neuronal Nicotinic Receptors
… This dissertation work emcompasses bioactive alkaloids from the plant Microcos paniculata collected in Vietnam. Microcos paniculata is a large shrub or small tree that grows in several countries in South and Southeast Asia. Three new piperidine alkaloids, microgrewiapines A-C, and a number of …
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Dynamics and Catalytic Resolution of Selected Chiral Organolithiums
… N-Boc-2-lithiopiperidine, and the ethylene ketal of N-Boc-2-lithio-4-oxopiperidine were selected. The barriers to racemization and dynamic thermodynamic resolution (DTR) of these compounds were measured in the presence of various diamine ligands. Using the …