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The review summarizes the diastereoselective synthesis of chloromycetine, of its cyclic acetals or ketals and related structures via 1,3-dioxanes, oxazolidines and 1,2-epoxides.
1,3-Dioxanic compounds were obtained by the ketalisation reaction of some α -alkylated β-ketoesters. The conformational analysis by means of 1 H- and 13 C-nmr investigations showed the anancomeric structure of the compounds. The axial or the equatorial position of the groups was inferred by N.O.E. experiments. The influence of the chiral carbon atom of the esteric group located...
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