1-[(2,6-difluorophenyl)methyl]-5-(2-fluoro-3-methoxyphenyl)-6-methyl-3-[(2R)-2-methylamino-2-phenylethyl]pyrimidine-2,4-dione 1-[(2,6-difluorophenyl)methyl]-5-(2-fluoro-3-methoxy-phenyl)-6-methyl-3-[(2R)-2-methylamino-2-phenyl-ethyl]pyrimidine-2,4-dione 1-(2,6-difluorobenzyl)-5-(2-fluoro-3-methoxy-phenyl)-6-methyl-3-[(2R)-2-methylamino-2-phenyl-ethyl]pyrimidine-2,4-quinone