COCC#Cc1ccc(C2C(C)CCC3C(=O)N4C(CCC(C)C4c4ccc(C#CCOC)cc4)C(=O)N32)cc1
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?