Showing structure for C[Si](C)(C)OC(=O)CCC(NC(=O)CCC(C(=O)O)N(C(=O)C1=CC=C(NCC2CN([Si](C)(C)C)C3=C(C(=O)[NH]C(N)=N3)N2[Si](C)(C)C)C=C1)[Si](C)(C)C)C(=O)O