Cc1ccc2c(c1)[C@H]1[C@H](CO2)[C@H](c2ccccc2)[C@]2(C)C(=O)Nc3cc(F)ccc3C(=O)N12
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?