CNC1C(O)CC(OC2C/C=C(\C)C/C(C)=C/C=C/CCC(C)CNC(=O)/C=C/C=C/C2C)OC1C
Molecules with a polar surface area of greater than 60 angstroms squared (Å2) is hard to pass brain blood barrier. What's the psa of this molecule?