CC(=O)OCC1OC(n2c3c(c(-c4ccc(Cl)cc4)c(C#N)c2=S)C(=O)CC(C)(C)C3)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O
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?