Using O=C(CBr)OCc1ccccc1, CCn1nc(C(=O)O)cc(N)c1=O to produce CCn1nc(C(=O)OCC(=O)OCc2ccccc2)cc(N)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.