Using CCOC(=O)C1(Nc2nc(Nc3ccc(C(=O)O)cc3)nc(OCC(F)(F)F)n2)CC1, CC(C)(C)OC(=O)NCCCCN to produce CCOC(=O)C1(Nc2nc(Nc3ccc(C(=O)NCCCCN)cc3)nc(OCC(F)(F)F)n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.