Showing structure for C[Si](C)(C)N(C(=O)CCC(C(=O)[O-])N(C(=O)CCC(NC(=O)C1=CC=C(NCC2CNC3=C(N2)C(=O)[NH]C(N)=N3)C=C1)C(=O)[O-])[Si](C)(C)C)C(CCC(=O)[O-])C(=O)[O-]