Using COc1cc(CNc2cc(N3CCN(C(=O)OC(C)(C)C)CC3)ccc2C(=O)C(F)(F)F)cc(OC)c1 to produce COc1cc(CNc2cc(N3CCNCC3)ccc2C(=O)C(F)(F)F)cc(OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.