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Enzymatic One-Pot Synthesis of Iminocyclitols
M. Sugiyama, Z. Hong, P.-H. Liang, S. M. Dean, L. J. Whalen, W. A. Greenberg*, C.-H. Wong*
the Scripps Research Institute, La Jolla, USA
23 January 2008 (online)
A one-pot synthesis of polyhydroxylated pyrrolidines and piperidines, usually called iminocyclitols, by using fructose-6-phosphate aldolase (FSA) as biocatalyst is reported. When racemic aldehydes A are used, the reactions are selective for (R)-aldehydes. Analysis of a piperidine product shows complete diastereoselectivity and 93% enantioinduction. The detailed analysis of the enantioselectivity and diastereoselectivity of these FSA-catalyzed reactions is under further study.