CC(C)(C)C(=O)N1CCN(c2ccc([N+](=O)[O-])c(-n3nc(-c4ccccc4)c4ccccc4c3=O)c2)CC1
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?