CCOC(=O)c1ccc(NC(=O)c2[nH]cnc2C(=O)N[C@@H](CCCCNC(=O)OC(C)(C)C)C(=O)OC(C)(C)C)cc1
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?