C[C@@H](C(=O)Nc1ccc2ccccc2c1)[C@@H]1C[C@@]1(C)[C@@H](NS(=O)(=O)c1ccc(-c2ccccc2)cc1)c1ccccc1
Molecules with a polar surface area of greater than 140 angstroms squared (Å2) tend to be poor at permeating cell membranes. What's the psa of this molecule?