Cc1cccc(CC(C)(C)C)c1NC(=O)C(=O)C(C(=O)c1ccc2ccccc2c1)C1OC(=O)c2ccccc21
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?