Pyrazinone

2(1H)-Pyrazinone, 3-amino-5-(2-hydroxyphenyl)-1-(3-piperidinyl)-

2(1H)-Pyrazinone, 1-methyl-5-(1-methylethyl)-

2(1H)-Pyrazinone,6-(bromomethyl)-5-chloro-3-(ethylthio)-1-(phenylmethyl)-

2(1H)-Pyrazinone,6-(1H-indol-3-ylmethyl)-5-methoxy-1-methyl-3-(2-methylpropyl)-