C[C@@H](C(=O)Nc1ccc2ccccc2c1)[C@H]1C[C@]1(C)[C@H](NS(=O)(=O)c1ccc(-c2ccccc2)cc1)c1ccccc1
PSA is a commonly used medicinal chemistry metric for the optimization of a drug's ability to permeate cells. Please predict psa of this molecule.