Showing structure for COC1=CC2=C(C=C1OC)CN(CCC1=CC=C(N3N=NC(C4=CC(OC)=C(OC)C=C4N(C(=O)C4=CC(=O)C5=CC=CC=C5O4)[Si](C)(C)C(C)(C)C)=N3)C=C1)CC2