Cc1cccc2c1NC(=O)C21N2CCCC2C(C(=O)c2ccc3ccccc3c2)C12C(=O)Nc1ccccc12
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?