CN(C(=O)c1ccc(NC(=O)Cc2cccc(NC(=O)C3CCN(C(=O)C4CCC4)CC3)c2)cc1)C1CCCC1
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?