O=C(Cn1c(=O)n(Cc2ccc(C(=O)NCc3ccccc3Cl)cc2)c(=O)c2ccccc21)Nc1ccc(F)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?