CC(=O)c1c(C)[nH]c(C(=O)CN2C(=O)NC(C)(c3ccc4c(c3)OCO4)C2=O)c1C
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?