2-(4-Methoxyphenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one

2-(4-Methoxyphenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one

2-(4-Nitrophenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one

2-(4-Nitrophenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one

2-(4-Methylphenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one

2-(4-Methylphenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one

2-(4-Chlorophenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one

2-(4-Chlorophenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one

2-(2-Methylphenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one

2-(2-Methylphenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one

2-Phenyl-4(1H)-pteridinone

2-Phenyl-4(1H)-pteridinone

2-(4-Methylphenyl)-4(1H)-pteridinone

2-(4-Methylphenyl)-4(1H)-pteridinone

2-(4-Chlorophenyl-4(3H)-pteridinone

2-(4-Chlorophenyl-4(3H)-pteridinone

2-(4-Methoxyphenyl)-4(1H)-pteridinone

2-(4-Methoxyphenyl)-4(1H)-pteridinone