2-羟甲基吡嗪

3-(2-吡嗪基)-3-氧代丙酸乙酯

methyl 3-oxo-3-(pyrazin-2-yl)propanoate

Methyl 2-methyl-3-oxo-3-(2-pyrazinyl)propanoate

N-[6-(pyrazine-2-carbonylamino)hexyl]pyrazine-2-carboxamide