Showing structure for CC(C)(C)[Si](C)(C)N(C(=O)C1=CC=C(N2CC3CNC4=C(C(=O)[NH]C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=N4)N3C2)C=C1)C(CCC(=O)[O-])C(=O)[O-]