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(2007/10/02)1-Acetyl-4-(4-methoxy-benzyl)-3-[1-(4-methoxy-3-methyl-phenyl)-meth-(Z)-ylidene]-piperazine-2,5-dione
4-(4-Methoxy-benzyl)-3-[1-(4-methoxy-3-methyl-phenyl)-meth-(Z)-ylidene]-1-methyl-piperazine-2,5-dione
(Z)-3-(4-methoxy-3-methylphenylmethylene)-4-(4-methoxyphenylmethyl)-2,5-piperazinedione
(Z)-1-acetyl-3-(4-methoxy-3-methylphenylmethylene)-2,5-piperazinedione
(Z)-1-methyl-3-(4-methoxy-3-methylphenylmethylene)-2,5-piperazinedione