COc1ccc(CNC(=O)C[C@H]2C[C@H](C(=O)N3CCCCC3)[C@@]3(CCc4ccccc4)c4[nH]c5ccc(Cl)cc5c4CCN3C2=O)cc1OC
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?