74-89-5
甲胺
+
74002-68-9
3-benzenesulfonylpyrazine-2-carbonitrile
→
~83%
63352-06-7
3-(甲基氨基)吡嗪-2-甲腈
13481-25-9
2,3-二氰基吡嗪
74002-48-5
3-phenylthiopyrazinecarbonitrile