Using NCC1COc2ccc(O)cc2O1, COc1ccc2[nH]cc(CCCC(=O)O)c2c1 to produce COc1ccc2[nH]cc(CCCCNCC3COc4ccc(O)cc4O3)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.