COc1cc(/C=C/C(=O)N[C@@H]2C(=O)N3[C@@H](C(=O)[O-])C(C)(C)S[C@H]23)ccc1O.[Na+]
A molecule with higher negative log P is water-soluble, while a molecule with lower negative log P is liposoluble. What is the negative log P of this molecule?