CC(=O)N/C(=C\c1cccc([N+](=O)[O-])c1)c1nc2ccc3c(c2[nH]1)C(=O)c1ccccc1C3=O
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?