CC(C)(C)OC(=O)NCCCC[C@H](NC(=O)c1[nH]cnc1C(=O)NC1CCN(C(=O)OC(C)(C)C)CC1)C(=O)OC(C)(C)C
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?