Using CC(=O)c1cncc(-c2cnc3c(c2)CCCN3)c1, O=C=NC(=O)c1ccccc1 to produce CC(=O)c1cncc(-c2cnc3c(c2)CCCN3C(N)=O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.