Showing structure for CC(C)(C)[Si](C)(C)OC(=O)CC[C@H](NC(=O)C1=CC=C(N2C=[N+]3C4=C([NH]C(N)=NC4=O)N([Si](C)(C)C(C)(C)C)C[C@@H]3C2)C=C1)C(=O)[O-]