Using [O-][I+3]([O-])([O-])[O-], C=CCn1c(=O)ccc2ncc(OC)cc21 to produce COc1cnc2ccc(=O)n(CC=O)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.