Abstract
Treo-1-aminooxy-2,3-dihydroxy-4-mercaptobu-tane is suggested for the introduction of reactive thiol groups via cytidine residues and/or 3′-end of nucleic acids. S-(5-desoxyadenosyl)-arainooxyethyl-thiomethyl hydroxy1-amine irreversibly inhibits SAM decarboxylase in 10−3 M.