16199-47-6
→
~39%
5202-32-4
trimethyl 5-methoxyfuran-2,3,4-tricarboxylate
146678-98-0
methyl 4,6,8-trimethylazulene-2-carboxylate
+
762-42-5
丁炔二酸二甲酯
146679-00-7
tetramethyl 4-methoxy-5-[1,2,3-tris(methoxycarbonyl)-2-cyclopropen-1-yl]-7-oxabicyclo[2.2.1]hepta-2,5-diene-1,2,3,6-tetracarboxylate
55525-27-4
1,1,2,3-丙烷四甲酸四甲酯