Using COC(=O)CBr, CCc1c(CC(N)=O)c2c(O)cccc2n1Cc1ccccc1 to produce CCc1c(CC(N)=O)c2c(OCC(=O)OC)cccc2n1Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.