C[C@H]1CN(C(=O)c2ccc(OC3CCN(S(=O)(=O)N(C)C)CC3)cc2)C[C@@H](C)O1
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?