Cc1ccccc1NC(=O)Cn1c(=O)n(-c2ccc(CC(=O)NCC3CCCO3)cc2)c(=O)c2ccccc21
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?