57005-61-5
5-甲基-6-氧代-1,6-二氢吡嗪-2,3-二甲腈
→
~78%
77168-83-3
4,5-二氢-6-甲基-5-氧代-2-吡嗪甲酸
77168-81-1
3-carbamoyl-1,6-dihydro-5-methyl-6-oxo-2-pyrazinecarboxylic acid
~53%
77168-82-2
4,5-dihydro-6-methyl-5-oxo-2-pyrazinecarboxamide
~33%