122-31-6
1,1,3,3-四乙氧基丙烷
+
23286-70-6
1-甲基-5-氨基吡唑-4-羧酸乙酯
→
~77%
96319-21-0
ETHYL 2-METHYLPYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXYLATE
35260-93-6
2-氰基-3-乙氧基巴豆酸乙酯