4 3 4 carboxy 2 hydroxy 1 phenyl 1H pyrrol 3 ylallylidene 45 dihydro 5 oxo 1 phenyl 1H pyrazole

4 3 4 carboxy 2 hydroxy 1 phenyl 1H pyrrol 3 ylallylidene 45 dihydro 5 oxo 1 phenyl 1H pyrazole

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