Using COC(=O)c1cccc(CC2CCC=C2c2nc(-c3ccccc3)c(-c3ccccc3)o2)c1 to produce O=C(O)c1cccc(CC2CCC=C2c2nc(-c3ccccc3)c(-c3ccccc3)o2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.