Cc1ccc(S(=O)(=O)NC(C)C(=O)Oc2ccc3c(=O)c(-c4ccc([N+](=O)[O-])cc4)c(C)oc3c2)cc1
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.