Using COc1ccc2c(C(=O)OC(C)C)nc(Nc3cc(C)[nH]n3)cc2c1 to produce COc1ccc2c(C(=O)O)nc(Nc3cc(C)[nH]n3)cc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.