Figure 2.

Effect of the time of drug addition on antiviral activity with SD of derivatives 2c (0.09 µM), 6c (0.23 µM) and 7c (0.3 µM) (green). Parallel experiments were performed using reference compounds NM 108 (1.5 µM) (blue) and Ribavirin (16 µM) (purple) for comparison. We show the untreated control in red.