This report describes the stereoselective synthesis of boranophosphate/phosphate (PB/PO) chimeric oligodeoxynucleotides (ODNs) and the nuclear magnetic resonance (NMR) analysis of oligomers containing PB linkages. This stereoselective synthesis involved dimer building blocks containing highly stereopure boranophosphotriester linkages. which enabled the synthesis of PB/PO chimeric ODNs... https://countryscenesaddleryandpetsuppliers.shop/product-category/western-show-tops/