Using COc1cc(OC)c(C(=O)Nc2cccc3c2CCN(C(=O)OC(C)(C)C)C3)cc1Cl to produce COc1cc(OC)c(C(=O)Nc2cccc3c2CCNC3)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.