Using COCCOCN(c1onc(C)c1Cl)S(=O)(=O)c1c(Cc2cc3c(cc2C)OCO3)sc2ncccc12 to produce Cc1cc2c(cc1Cc1sc3ncccc3c1S(=O)(=O)Nc1onc(C)c1Cl)OCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.