COc1ccccc1CN1CCC(CNC(=O)c2cnn(-c3ccc(Cl)cc3)c2C2CCN(C(=O)OC(C)(C)C)CC2)CC1
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?