(4Z)-5-amino-4-(4,5-dimethoxy-6-oxocyclohexa-2,4-dien-1-ylidene)-6-(4-methoxy-2,2-dimethyl-5-oxo-3,5-dihydro-2H-imidazo[4,5-h]quinolin-8-yl)-3-methyl-1,4-dihydropyridine-2-carboxylic acid
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