CCC1=C(C)C2=[N+]3C1=CC1=C(C)C4=C5N1[Mg--]31N3C(=CC6=[N+]1C(C(CCC(O)=O)=C6C)=C5[C@@H](C(=O)OC)C4=O)C(C)=C(C=C)C3=C2