CC(C)C(C(=O)N1CCN(C(=O)OC(C)(C)C)CC1)n1cc(-c2cn([C@@H](C)C(=O)N3CCN(C(=O)OC(C)(C)C)CC3)nn2)nn1
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?