CCC1=C(C=O)C2=CC3=C(C=C)C(C)=C4C=C5C(C)C(CCC(=O)OCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)C)C6=[N]5[Mg]5(N34)N3C(=CC1=[N]25)C(C)=C1C(=O)C(C(=O)OC)C6=C31