Using O=C1CN=C(c2ccccc2)c2ccc(Br)cc2N1, C=CC(=O)OC to produce COC(=O)/C=C/c1ccc2c(c1)NC(=O)CN=C2c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.