4-(2-hydroxy-3-methoxyphenyl)but-3-en-2-one

5-bromo-2,3-dihydroxybenzaldehyde

8-甲氧基-2H-色烯-3-甲醛

8-甲氧基-3-硝基-2-苯基-2H-1-苯并吡喃

8-methoxy-2-(4-methoxyphenyl)-3-nitro-2H-chromene