104862-17-1
ethyl 3-hydroxy-3-methyl-5-nitro-2,3-dihydrobenzofuran-2-carboxylate
→
~83%
104862-22-8
3-methyl-5-nitro-benzofuran-2-carboxylic acid ethyl ester
87977-34-2
3-methyl-5-nitro-1-benzofuran-2-carboxylic acid