Chemical structure search

Input SMILES: NCC(=O)NC1CSSCC2NC(=O)C3CCCN3C(=O)C3N(C(=O)C(NC(=O)C(NC(=O)C(NC1=O)CSSCC(NC(=O)C(CC(=O)O)NC(=O)C1CCCN1C(=O)C(NC(=O)C(NC(=O)C(NC(=O)C(NC2=O)Cc1ccccc1)C)C(O)C)CC(=O)N)C(=O)N)CO)Cc1ccc(cc1)O)CCC3

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