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Synthesis of aminoacyl-sulfamoyl adenosines (aaSAs) and their peptidyl conjugates as aminoacyl tRNA synthetase (aaRS) inhibitors remains problematic due to the low yield of the aminoacylation and the subsequent conjugation reaction causing concomitant formation of a cyclic adenosine derivative. In an effort to reduce this undesirable side reaction, we aimed to prepare the corresponding aminoacyl sulfonamide...