Using COC(=N)c1ccc(OCc2ccc(CN3C(=O)c4ccccc4C3=O)cc2)c(OC)c1, N to produce COc1cc(C(=N)N)ccc1OCc1ccc(CN2C(=O)c3ccccc3C2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.