Using CC(C)(C)OC(=O)N1CCN(Cc2ccccc2)CC1Cc1ccc2ccccc2c1 to produce c1ccc(CN2CCNC(Cc3ccc4ccccc4c3)C2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.