Using CCOCCNc1cnccc1NC(=O)CN1CCN(Cc2ccccc2)CC1 to produce CCOCCn1c(CN2CCN(Cc3ccccc3)CC2)nc2ccncc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.