Using CCn1ncc2c(NCc3ccccc3)c(C3=NOC4(CCC4)C3)cnc21 to produce CCn1ncc2c(N)c(C3=NOC4(CCC4)C3)cnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.