Showing structure for CC(C)(C)[Si](C)(C)OC(=O)CC[C@H](NC(=O)C1=CC=C(NCC2=NC3=C(NC2)N([Si](C)(C)C(C)(C)C)C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=NC3=O)C=C1)C(=O)O