Nucleophilic reactions of some nucleoside phosphorothioates.
D003500:Cyclization; D008956:Models, Chemical; D009711:Nucleotides; D011119:Polynucleotides / Q000138:chemical synthesis; D013455:Sulfur; D014105:Tosyl Compounds
D009711:Nucleotides; D011119:Polynucleotides; D014105:Tosyl Compounds; D013455:Sulfur