Using CN(c1nccc(-n2cnc3ccccc32)n1)C1CCN(C(=O)OCc2ccccc2)C1 to produce CN(c1nccc(-n2cnc3ccccc32)n1)C1CCNC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.