Using O=c1nc(Nc2ccc(Cl)cc2)sc2ncccc12, COc1cccc(CCl)c1 to produce COc1cccc(CN(c2ccc(Cl)cc2)c2nc(=O)c3cccnc3s2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.