Using COC(=O)c1ccc(-c2nn(-c3ccccc3)c3cc[se]c23)o1 to produce O=C(O)c1ccc(-c2nn(-c3ccccc3)c3cc[se]c23)o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.