Using O=C1NC=NC2CN=C(c3ccccc3)c3cc(Cl)ccc3C12 to produce O=c1[nH]cnc2c1-c1ccc(Cl)cc1C(c1ccccc1)=NC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.