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?? ???? >5-(2,4-dimethoxyphenyl)-3-[(2-methoxy-1-naphthyl)methylene]-2(3H)-furanone
5-(2,4-dimethoxyphenyl)-3-[(2-methoxy-1-naphthyl)methylene]-2(3H)-furanone
5-(2,4-dimethoxyphenyl)-3-[(2-methoxy-1-naphthyl)methylene]-2(3H)-furanone ??
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5-(2,4-dimethoxyphenyl)-3-[(2-methoxy-1-naphthyl)methylene]-2(3H)-furanone C??? ??, ??, ??
5-(2,4-dimethoxyphenyl)-3-[(2-methoxy-1-naphthyl)methylene]-2(3H)-furanone ?? ?? ? ???
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5-(2,4-dimethoxyphenyl)-3-[(2-methoxy-1-naphthyl)methylene]-2(3H)-furanone ?? ??
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