C[C@@H](CO)N1C[C@@H](C)[C@@H](CN(C)CC2CCOCC2)Oc2ncc(C#Cc3cccc(F)c3)cc2C1=O
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?