Using CC(=O)Nc1cccc(Nc2ncc(C(N)=O)c(NCC3CCCN(C(=O)OCc4ccccc4)C3)n2)c1 to produce CC(=O)Nc1cccc(Nc2ncc(C(N)=O)c(NCC3CCCNC3)n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.