Using c1ccc(N2CCNCC2)nc1, O=C(O)CC1CCC2(CC1)OCCO2 to produce O=C(CC1CCC2(CC1)OCCO2)N1CCN(c2ccccn2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.