(R)-5-chloro-1-(1-cyclopropylpropyl)-3-(2,4-dichloro-6-methylphenylamino)pyrazin-2(1H)-one
(R)-3,5-dichloro-4-[6-chloro-4-(1-cyclopropylpropyl)-3-oxo-3,4-dihydropyrazin-2-ylamino]benzonitrile
(R)-5-chloro-1-(1-cyclopropylpropyl)-3-(4-methoxy-2,6-dimethylphenylamino)pyrazin-2(1H)-one
(R)-5-chloro-1-(1-cyclopropylpropyl)-3-(4-methoxy-2,5-dimethylphenylamino)pyrazin-2(1H)-one
(R)-5-chloro-3-(4-chlorophenylamino)-1-(1-cyclopropylpropyl)-pyrazin-2(1H)-one