Using COC(=O)c1ccccc1S, ClCC(=Nc1ccccc1)Nc1ccccc1 to produce Oc1c(C(=Nc2ccccc2)Nc2ccccc2)sc2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.