Using O=C([O-])[O-], COc1ccccc1-n1c(-c2ccccc2)cn2c3c(=O)[nH]c(=O)n(C)c3nc12 to produce COc1ccccc1-n1c(-c2ccccc2)c(CO)n2c3c(=O)[nH]c(=O)n(C)c3nc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.