Using O=C1NC(=O)c2ccccc21, Cc1cccc2nc(C(C)O)c(Br)c(=O)n12 to produce Cc1cccc2nc(C(C)N3C(=O)c4ccccc4C3=O)c(Br)c(=O)n12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.