O=C(O)C(F)(F)F.O=C1C2=C(C3=NCCc4c[nH]c1c43)C1(C=C(Br)C(O)C(Br)=C1)CCN2
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?