Using CCOC(=O)Cc1cnc(N2CCN(Cc3ccccc3)CC2)nc1O to produce O=C(O)Cc1cnc(N2CCN(Cc3ccccc3)CC2)nc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.