CCOC(=O)C1=C(O)/C(=C\c2ccc(CNC(=O)C(=O)Nc3ccc(C)c(C)c3)o2)N=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?