CC1CC(C)CN(S(=O)(=O)c2ccc(NC(=O)CN3C(=O)NC(C)(c4ccccc4)C3=O)cc2)C1
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?