Using CCOP(=O)(OCC)C(Nc1ccc(CCCBr)cn1)P(=O)(OCC)OCC, CC([O-])=S to produce CCOP(=O)(OCC)C(Nc1ccc(CCCSC(C)=O)cn1)P(=O)(OCC)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.