Table 5. Inhibitory Values of Analogues 49–54.

^aConcentration of compound inhibiting cytopathic effect to 50% of untreated cells. Values represent the mean (standard deviation) from three independent experiments.

^bIncubation of confluent CaCo2 or Vero cell layers with different concentrations of all the dipeptides for 3 days.

^cCC₅₀, 50% cytotoxic concentration.