Using O=C1Cc2ccccc2N1, COc1cc2ncnc(Cl)c2cc1OC to produce COc1cc2ncnc(C3C(=O)Nc4ccccc43)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.