Fig. (4) Agarose gel electrophoresis showing PCR amplified product of HCV RNA (+) and (-) strands in the presence of compounds 3b, 12a, 12b, 4, 10c and 10f. Lane 1: molecular weight marker (M) 100bp ladder, lanes 2 and 4 = positive control and lane 3 = negative control. Lanes 5, 7, 9, 11, 13 and 15 show the effect of compounds 3b, 12a, 12b, 4, 10c and 10f on HCV RNA (-) strands and lanes 6, 8, 10, 12, 14 and 16 show the effect of compounds 3b, 12a, 12b, 4, 10c and 10f on HCV RNA (+) strands isolated from HepG2 cells at the EC99 in µg/mL after 3 days of treatment.