Using C=Cc1ccncc1, COC(=O)c1cc(Br)cc(C(=O)OC)c1 to produce COC(=O)c1cc(C=Cc2ccncc2)cc(C(=O)OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.