Using CC(=O)Nc1cccc2c1C(=O)OC2=O, CCOc1cc(C(N)CC(O)CC)ccc1OC to produce CCOc1cc(C(CC(O)CC)N2C(=O)c3cccc(NC(C)=O)c3C2=O)ccc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.