Cn1c(=O)c2cc(S(=O)(=O)NC(C(=O)Nc3cccnc3)c3ccccc3)ccc2n(C)c1=O
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?