Showing structure for CC(=O)C(=O)C1CN([Si](C)(C)C(C)(C)C)C2=C(C(=O)N([Si](C)(C)C(C)(C)C)C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=N2)N1[Si](C)(C)C(C)(C)C