Using O=C(O)c1cnc(-n2cccn2)nc1O, CCOP(C)(=O)c1ccc(C(N)c2ccccc2)cc1 to produce CCOP(C)(=O)c1ccc(C(NC(=O)c2cnc(-n3cccn3)nc2O)c2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.