C[C@H]1CN([C@H](C)CO)C(=O)c2cc(NS(=O)(=O)c3cn(C)cn3)ccc2O[C@@H]1CN(C)C(=O)NC1CCCCC1
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?