Gram-scale, enantiospecific total syntheses of the anti-leukemia marine natural products kapakahines B and F have been completed. Two powerfully simplifying transformations have enabled the gram-scale synthesis of this natural product family: (1) an oxidative N-C bond-forming reaction that sets a key quaternary center with complete stereocontrol and (2) a unique strategy for the construction of twisted macrocycles via dynamic equilibration of complex late-stage intermediates.
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Newhouse et al. (2009) studied this question.
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