Using CCOC(=O)c1sc2c(c1OC)CCN(C(=O)OCC)CC2, O=C1CCC(=O)N1Br to produce CCOC(=O)N1CCc2sc(Br)c(OC)c2CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.