CCc1cccc(Nc2cnn(C34C[C@H]5C[C@H](CC(CC(=O)O)(C5)C3)C4)c(=O)c2Cl)c1
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?