Using COC(=O)C(Cc1ccc(OCCc2nc(-c3ccccc3)oc2C)cc1)C(=O)OC to produce Cc1oc(-c2ccccc2)nc1CCOc1ccc(CC(C(=O)O)C(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.