Using COc1ccc(-n2c3c(c(=O)c4cccnc42)CCO3)cc1 to produce COc1ccc(-n2c(=O)c3c(c4cccnc42)OCC3)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.