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https://hultgrenlab.wustl.edu/publications/carboxylic-acid-isosteres-improve-the-activity-of-ring-fused-2-pyridones-that-inhibit-pilus-biogenesis-in-e-coli/ Carboxylic acid isosteres improve the activity of ring-fused 2-pyridones that inhibit pilus... carboxylic acidthe activityisosteresimprovering