Cc1ccc(S(=O)(=O)N[C@H]2COC(=O)[C@@H](C)COC(=O)[C@H](C)NC(=O)C/C=C\[C@H]2C)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?