5-硝基-2-甲基呋喃

5-methyl-4-nitro-2-furancarboxylic acid

methyl 5-(5-methylfuran-2-carbonyl)furan-2-carboxylate

tert-butyl N-(5-methylfuran-2-yl)carbamate

2-(5-methylfuran-2-yl)-5-nitro-1,3-benzoxazole