Chemical structure search

Input SMILES: COC1=C(OC)C=CC(=c2c(N)c([nH]c(c2C)C(=O)O)c2ccc3c(n2)C(=O)C(=C(C3=O)OC)N)C1=O

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To return all relevant hits please ensure that your input structure does not include chiral specification.