title: Improved triester approach for the synthesis of pentadecathymidylic acid.
mesh_terms: D004952:Esters; D008722:Methods; D011071:Poly T / Q000138:chemical synthesis*; D011089:Polydeoxyribonucleotides / Q000138:chemical synthesis*
chemical_list: D004952:Esters; D011089:Polydeoxyribonucleotides; D011071:Poly T