Using CC(C)(C)OC(=O)N1CCC(C(=O)N(Cc2ccccc2)Cc2ccccc2)CC1 to produce O=C(C1CCNCC1)N(Cc1ccccc1)Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.