Using O=C1NC(=O)c2ccccc21, CCOP(=O)(Cc1cccc(CBr)c1)OCC to produce CCOP(=O)(Cc1cccc(CN2C(=O)c3ccccc3C2=O)c1)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.