CCOC(=O)c1cccc(C2=C(CNC(=O)c3cccnc3)[C@H]3CC[C@@H](C2)N3Cc2ccccc2)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?