Toward a total synthesis of the stemofoline alkaloids: Advancement of a 1,3-dipolar cycloaddition strategy |
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Authors: | Shanahan Charles S Fuller Nathan O Ludolph Bjoern Martin Stephen F |
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Institution: | Department of Chemistry and Biochemistry, The University of Texas, Austin, TX 78712, USA |
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Abstract: | Novel, intramolecular 1,3-dipolar cycloadditions of azomethine ylides have been applied to the synthesis of functionalized core structures of the stemofoline alkaloids. In an effort to maximize the efficiency of this key transformation in the context of an eventual total synthesis of these complex natural products, a number of strategic modifications to the cycloaddition substrate were investigated. The collective efforts have provided useful insights into the operative, regiochemical control elements for 1,3-dipolar cycloadditions leading to stemofoline alkaloids. A potential intermediate in the synthesis of these alkaloids was prepared. |
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Keywords: | Azomethine ylide Dipolar cycloaddition Stemofoline alkaloids Natural product synthesis |
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