Using CC(C)(C)OC(=O)N=C(NCCCCN)N(Cc1ccc(F)cc1)C(=O)OC(C)(C)C to produce N=C(NCCCCN)NCc1ccc(F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.