Using COc1ccc(CC(=O)Nc2c(O)cccc2O)cc1OC1CCCC1 to produce COc1ccc(Cc2nc3c(O)cccc3o2)cc1OC1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.