COC(=O)C1=C(C)N(CC2CC2)C(NCc2cc(OC)c(OC)c(OC)c2)=N[C@H]1c1ccccc1
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?