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(2007/10/02)2-(3-hydroxy-4-methoxyphenyl)-1,3-dithian
2-(N-carbethoxy-N-methyl-2-aminoethyl)-4,5-dimethoxybenzaldehyde
2-hydroxy-2-(2-<β-(N-ethoxycarbonyl-N-methyl)aminoethyl>-4,5-dimethoxyphenyl)-1-(3-hydroxy-4-methoxyphenyl)ethanone 1,3-propylenedithioacetal