C/C=C1\NC(=O)[C@H]2CSSCC/C=C\[C@H](CC(=O)N[C@H](C(C)C)C(=O)N2)OC(=O)[C@H](C(C)C)NC1=O
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?