50-00-0
甲醛
+
15862-72-3
2-哌啶甲酸乙酯
→
~80%
30727-18-5
1-甲基-2-哌啶甲酸乙酯
34285-36-4
1-methyl-2-ethoxycarbonylpyridinium iodide
2524-52-9
2-吡啶甲酸乙酯