CC(C)(C)[C@H]1COC(=O)CCC/C=C/C[C@H](CC(=O)N(CCO)Cc2ccccc2)C(=O)N1
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?