Using N=C(N)c1ccc2cc(OC(=O)C=Cc3ccccc3)ccc2c1 to produce N=C(N)c1ccc2cc(OC(=O)CCc3ccccc3)ccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.