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The first examples of Rh-catalyzed cyclohydrocarbonylation-bicyclization of N-allylic amides of arylacetic acids are reported. This novel carbonylative bicyclization process was successfully applied to the rapid syntheses of crispine A and its analogues (tricyclic indolizidine alkaloids) as well as harmicine (tetracyclic beta-carboline alkaloid).
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Chiou et al. (2009) studied this question.
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