NC(=O)CC[C@H](NC(=O)c1ccc(F)cc1)C(=O)OCC(=O)Nc1c(F)c(F)c(F)c(F)c1F
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?