CCCOc1ccc(C(=O)N2CC3(CC(c4cccc(NC(=O)[C@@H]5CCC(=O)N5)c4)=NO3)C[C@H]2C(=O)NC2(C(N)=O)CC2)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.