30991-02-7
diethyl 2-(4-nitro-3-oxo-1,3-dihydrobenzo[c]furan-1-ylidene)malonate
→
~89%
13619-70-0
2-乙酰基-6-硝基苯甲酸
179678-21-8
+
179678-22-9
methyl 2-acetyl-6-nitrobenzoate