Using COc1ccccc1C1(O)CCC(C)(C)C2CN(C(=O)OC(C)(C)C)CC21 to produce COc1ccccc1C1(O)CCC(C)(C)C2CNCC21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.