3-thiophenecarboxylic acid, 4,5-dimethyl-2-[[(2E)-3-(5-methyl-2-furanyl)-1-oxo-2-propen-1-yl]amino]-, methyl ester;Methyl 4,5-dimethyl-2-{[(2E)-3-(5-methyl-2-furyl)prop-2-enoyl]amino}thiophene-3-carboxylate
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