Using O=Cc1ccccc1, Nc1ccc(NC(=O)C(=O)N2CCC(Cc3ccccc3)CC2)cc1 to produce O=C(Nc1ccc(NCc2ccccc2)cc1)C(=O)N1CCC(Cc2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.