2-thiophenecarboxylic acid, 4-(aminocarbonyl)-5-[[(2E)-3-[4-(1,1-dimethylethyl)phenyl]-1-oxo-2-propen-1-yl]amino]-3-methyl-, 1-methylethyl ester;Isopropyl 5-{[(2E)-3-(4-tert-butylphenyl)prop-2-enoyl]amino}-4-carbamoyl-3-methylthiophene-2-carboxylate
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