Using O=Cc1ccccc1, CC(=O)c1ccc(N2CCN(c3ccncc3)CC2)cc1 to produce O=C(C=Cc1ccccc1)c1ccc(N2CCN(c3ccncc3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.