57005-61-5
5-甲基-6-氧代-1,6-二氢吡嗪-2,3-二甲腈
→
~84%
72126-54-6
5-chloro-6-methylpyrazine-2,3-dicarbonitrile
72112-35-7
5-(ethylamino)-6-methylpyrazine-2,3-dicarbonitrile
88548-89-4
5-(diethylamino)-6-methylpyrazine-2,3-dicarbonitrile