5-Methoxy-2,3-dihydro-1-benzofuran-6-carbaldehyde

7-硝基-4-氧代-4H-色烯-3-甲醛

N,N-dicyclohexylformamide

7-羟基-4-氧代-4H-1-苯并吡喃-3-羧醛

7-羟基-苯并吡喃-4-酮