Using CCCn1c(Cl)nc2nc(-c3cnn(Cc4ccccc4)c3)[nH]c2c1=O to produce CCCn1cnc2nc(-c3cnn(Cc4ccccc4)c3)[nH]c2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.