CC[C@H](C)C(C(=O)N1CCN(C(=O)OC(C)(C)C)CC1)n1cc(C(CO)NC(=O)OC(C)(C)C)nn1
Molecules with a polar surface area of greater than 60 angstroms squared (Å2) is hard to pass brain blood barrier. What's the psa of this molecule?