Showing structure for C[Si](C)(C)OC1=NC(=N)N([Si](C)(C)C)C2=C1N(C=O)C(CNC1=CC=C(C(=O)N(C(CCC(=O)O)C(=O)O)[Si](C)(C)C)C=C1)CN2[Si](C)(C)C