C#C[C@]1(O)CC[C@H]2[C@@H]3CCC4=C/C(=N/CCOC(=O)c5cccc6cc7ccccc7nc56)CC[C@@H]4[C@H]3CC[C@@]21C
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.