623-73-4
重氮乙酸乙酯
+
107-19-7
2-丙炔-1-醇
→
61453-48-3
Ethyl 5-(hydroxymethyl)-1H-pyrazole-3-carboxylate
61453-49-4
ethyl 4-(hydroxymethyl)-1H-pyrazole-5-carboxylate