CCN1C(C)=C(C(=O)OC)C(c2ccccc2)N2C(=O)[C@](O)(C(=O)OC)C(c3ccccc3)C(C(C)=O)=C12
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?