Using Cc1c(Cl)cccc1Cn1c(=S)[nH]c(=O)c2sc(N3CCOCC3)nc21, CC(C)(C)OC(=O)CBr to produce Cc1c(Cl)cccc1Cn1c(SCC(=O)OC(C)(C)C)nc(=O)c2sc(N3CCOCC3)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.