Using CSc1cccc(C(=NOCc2cccc(N3C(=O)c4ccccc4C3=O)n2)c2nnnn2C)c1 to produce CSc1cccc(C(=NOCc2cccc(N)n2)c2nnnn2C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.