13192-04-6
alpha-酮戊二酸二甲酯
+
3699-66-9
三乙基2-膦酰基丙酯
→
496919-84-7
1-O-ethyl 2-O,4-O-dimethyl 1-methylbut-1-ene-1,2,4-tricarboxylate
487-66-1
2,5-二羟基-4-甲基-2,5-二氧代-3-呋喃丙酸