Using COc1cc2ncn(C)c2cc1OC, O=C(c1ccco1)N1CCNCC1 to produce COc1cc2nc(N3CCN(C(=O)c4ccco4)CC3)n(C)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.