Using O=C1NCc2cnc(Nc3ccc(-n4cccn4)cc3)nc2N1C1CCCC1 to produce O=c1ncc2cnc(Nc3ccc(-n4cccn4)cc3)nc2n1C1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.