[Fe++].[H]\C1=C2\N\C(=C([H])/C3=N/C(=C([H])\C4=N\C(=C([H])/C5=C(C(C)SCC(N)C(=O)[N-]C)C(C)=C1N5)\C(C)=C4C(C)SCC(N)C(O)=NC)/C(C)=C3CCC(O)=O)C(CCC([O-])=O)=C2C