1122-58-3
4-二甲氨基吡啶
+
34619-03-9
ditert-butyl carbonate
96042-30-7
2-[2-[(E)-2-[4-(dimethylamino)phenyl]ethenyl]-6-methylpyran-4-ylidene]propanedinitrile
2942-42-9
7-硝基吲唑
→
173459-52-4
tert-butyl 7-nitroindazole-1-carboxylate