COc1ccc(-c2ccc3c(c2)O[C@H](CN(C)C(=O)Nc2ccccc2F)[C@@H](C)CN([C@H](C)CO)S3(=O)=O)cc1
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?