Showing structure for C=CC1=C(C)C2=CC3=NC(=CC4=NC(=CC5=C(C=C)C(C)=C(C=C1[N-]2)N5[Si](C)(C)C(C)(C)C)C(C)=C4C(CC(=O)OC)O[Si](C)(C)C(C)(C)C)C(CCC(=O)[O-])=C3C