COc1ccc(-c2c(C#N)c(SCC(=O)Nc3ccc(C)c(C)c3)nc(C)c2C(=O)Nc2ccc(Cl)cc2)cc1
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?