*Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, ul.Vavilova 32, Moscow, 119991, Russia.**Department of Chemistry, University of Kuopio, P. O. Box 1627, Kuopio, FIN-70211, Finland.***Virtanen Institute for Molecular Sciences, University of Kuopio, P. O. Box 1627, Kuopio, FIN-70211, Finland.
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α-Methylspermine and α,α′-dimethylspermine were synthesized in high overall yields starting from N-(benzyloxycarbonyl)-3-aminobutanol in order to study polyamine biochemistry in vitro and in vivo.