Showing structure for C[Si](C)(C)OC(=O)C(CCC(=O)O)NC(=O)C1=CC=C(NCC2CN([Si](C)(C)C)C3=C(C(=O)[NH]C(N([Si](C)(C)C)[Si](C)(C)C)=N3)N2C=N)C=C1