NC(=O)[C@@H]1CCCCNc2c(F)cc([N+](=O)[O-])cc2C(=O)N[C@@H](CC(=O)O)C(=O)NCC(=O)N1
Molecules with a polar surface area of greater than 60 angstroms squared (Å2) is hard to pass brain blood barrier. What's the psa of this molecule?