COC(=O)c1cc(C(=O)OC)cc(-n2c(C)cc(C(=O)COC(=O)CNS(=O)(=O)c3ccc(C)cc3)c2C)c1
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?