COc1ccc(-c2nc3c(c4c2C[C@H](c2ccccc2)OC4)CN(S(=O)(=O)c2ccc(Cl)c4nonc24)CC3)c(C)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?