Using Cc1ccnc2c1n1ccnc1n2-c1ccc(O)cc1, COCCn1c(S(C)(=O)=O)nc2cccnc21 to produce COCCn1c(Oc2ccc(-n3c4nccc(C)c4n4ccnc34)cc2)nc2cccnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.