Using O=C1CCCC[C@H]1Nc1nc2ccc(Cn3cnc4cccnc43)cc2s1, NO to produce ON=C1CCCC[C@H]1Nc1nc2ccc(Cn3cnc4cccnc43)cc2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.