C[C@H]1CN([C@@H](C)CO)C(=O)CCCn2nncc2CO[C@@H]1CN(C)S(=O)(=O)c1cccc(F)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?