Using COC(=O)c1c(/C=C2\N=C(c3ccccc3)OC2=O)cccc1OC to produce COC(=O)c1cc2cccc(OC)c2c(=O)[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.