CC(=O)c1ccc(N2CCN(C(=O)CCC(=O)Nc3ccc4nc(N5CCCCC5)cc(C)c4c3)CC2)cc1
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?