Using CCOC(=O)C(C)(C)C1CCN(c2ncc(-c3cccc(Nc4cc(C)ccn4)n3)s2)CC1 to produce Cc1ccnc(Nc2cccc(-c3cnc(N4CCC(C(C)(C)C(=O)O)CC4)s3)n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.