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(2007/10/02)diethyl 2,4-dimethylpyrrole-3,5-dicarboxylate
3,5-dimethyl-pyrrole-2,4-dicarboxylic acid 4-tert-butyl ester 2-ethyl ester
ethyl 2-hydroxyimino-3-oxobutanoate
2-acetoacetic acid
ethyl 2-acetylacetoacetate
3,5-dimethyl-pyrrole-2-carboxylic acid hydrazide
ethyl 4-iodo-3,5-dimethyl-1H-pyrrole-2-carboxylate
ethyl 3,5-dimethyl-4-formyl-1H-pyrrole-2-carboxylate
diethyl 2,4-dimethylpyrrole-3,5-dicarboxylate
3,5-dimethyl-4-phenylsulfanyl-pyrrole-2-carboxylic acid ethyl ester