Using COc1ccccc1-c1nc2ncn(Cc3ccccc3)c2c(=O)[nH]1 to produce O=c1[nH]c(-c2ccccc2O)nc2ncn(Cc3ccccc3)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.