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Katsunori Tanaka Eric R.O. SiwuShinji Hirosaki Takayuki IwataRisa Matsumoto Yasutaka KitagawaAmbara R. Pradipta Mitsutaka OkumuraKoichi Fukase 《Tetrahedron letters》2012,53(44):5899-5902
Formal [4+4] reaction of the unsaturated benzyl- or allylimines, which is efficiently mediated by primary amine, provides the 2,6,9-triazabicyclo[3.3.1]nonane derivatives. Variously substituted homo- and hetero-coupling products are obtained in good to excellent yields by quite a simple procedure under mild conditions: by mixing the unsaturated aldehydes with the amines at room temperature. 相似文献
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This review provides a compilation of the most recent synthetic approaches and total syntheses of zoanthamine alkaloids, which are structurally unique heptacyclic marine natural products that display a range of interesting biological activities. This review is focused on synthetic methodologies for the construction of the three adjacent quaternary asymmetric carbon atoms on the cyclohexane ring (C-ring) of these compounds. The literature covered in this review dates from 2008 to the end of 2013. 相似文献
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