CC(C)(C)[C@H](NC(=O)c1ccc(N)c(Cl)c1)C(=O)N1CCC[C@H]1C(=O)N[C@H](C#N)Cc1nnn[nH]1
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?