[EN] HCV INHIBITORS, PREPARATION METHOD AND USE THEREOF<br/>[FR] INHIBITEURS DU VHC, LEUR PROCÉDÉ DE PRÉPARATION ET LEUR UTILISATION<br/>[ZH] HCV抑制剂、其制备方法与应用
the 3'-, 5'-positions (DiMe, DiCF(3)). Compound 7 was modified by introduction of alkylgroups (methyl, tert-butyl, adamantyl) and a trifluoromethyl group (CF(3)) in the 7-position. The derivatives of 1 and 7 show for groups with growing steric demand decreased mutagenic activity. The bulkiest groups (CF(3), tert-butyl and adamantyl) induce the strongest effects on the mutagenicity. It was even possible