Using CCCC(=O)CC(=O)OCC, Cc1ccc(Br)c2c(CC(N)CO)c[nH]c12 to produce CCCC1(CC(=O)OCC)OCCc2c1[nH]c1c(C)ccc(Br)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.