Using NCC(=O)O, CCOC(=O)c1ncc2c(c(C)c(C)n2Cc2ccccc2)c1OC(=O)C(C)(C)C to produce Cc1c(C)n(Cc2ccccc2)c2cnc(C(=O)NCC(=O)O)c(O)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.