Showing structure for C[Si](C)(C)NC1=NC2=C(C(=O)[NH]1)N([Si](C)(C)C)C(CN(C1=CC=C(C(=O)N(C(CCC(=O)NC(CCC(=O)O)C(=O)O)C(=O)O)[Si](C)(C)C)C=C1)[Si](C)(C)C)CN2