Cc1cccc(N2C(=O)N3[C@@H]4c5ccccc5OC[C@@H]4[C@@H](c4ccccc4)[C@@]3(C)C2=O)c1
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?