Using COc1cc(NCc2cnc(SC)nc2N)cc(OC)c1, O=C(n1ccnc1)n1ccnc1 to produce COc1cc(OC)cc(N2Cc3cnc(SC)nc3NC2=O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.