CCOC1=C2CN(S(=O)(=O)c3ccc(C)cc3)[C@@H](c3ccccc3)C[C@H]2[C@H]2C(=O)N(c3ccccc3)C(=O)[C@H]2C1
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.