105378-60-7
2-Acetoxymethyl-6-methyl-4-(2-nitrophenyl)-pyridin-3,5-dicarbonsaeuredimethylester
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105378-62-9
2-Methyl-4-(2-nitrophenyl)-5-oxo-5,7-dihydrofuro[3,4-b]pyridin-3-carbonsaeure