benzyl furan-2-carboxylate

methyl 5-methoxyfuran-2-carboxylate

5-(2-甲基-2-丙基)-2-糠酰氯

methyl 5-[(E)-3-methoxy-3-oxoprop-1-enyl]furan-2-carboxylate

6-chloronaphthalene-1-carboxylic acid