Using CC(C)(C)OC(=O)N1CC=C(c2ccc(NC(=O)N3Cc4ccccc4C3)cc2)CC1 to produce O=C(Nc1ccc(C2CCNCC2)cc1)N1Cc2ccccc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.