Using COc1cc(C(N)(CC2c3ccccc3Oc3ccccc32)C(=O)O)ccc1C(=O)O to produce NC(CC1c2ccccc2Oc2ccccc21)(C(=O)O)c1ccc(C(=O)O)c(O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.