Cc1c(F)c(NC(=O)CN(C)C)c2c(=O)cc(-c3ccc(NC(=O)CN(C)C)c(F)c3)oc2c1F
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?