COC(=O)N1[C@H]2Cc3c(OC)c(C)c(OC)c(OC)c3[C@@H]1/C(=C\c1cc(OC)c(OC)c(C)c1OC)N(Cc1ccccc1)C2=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?