2-[1-(4-tert-butylphenyl)-1H-pyrazol-4-yl]-9-hydroxy-3H-naphtho[1,2-d]imidazole-7-carboxylic acid
2-(3',4'-difluorobiphenyl-3-yl)-9-hydroxy-3H-naphtho[1,2-d]imidazole-7-carboxylic acid
2-(4'-carboxy-3'-methylbiphenyl-3-yl)-9-hydroxy-3H-naphtho[1,2-d]imidazole-7-carboxylic acid
2-(4'-propylbiphenyl-3-yl)-9-hydroxy-3H-naphtho[1,2-d]imidazole-7-carboxylic acid
2-(4'-ethylbiphenyl-3-yl)-9-hydroxy-3H-naphtho[1,2-d]imidazole-7-carboxylic acid