Using CCOC(=O)NCCn1c(NC2CCN(Cc3ccccc3)CC2)nc2cccnc21 to produce NCCn1c(NC2CCN(Cc3ccccc3)CC2)nc2cccnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.