Showing structure for C[Si](C)(C)NC1=NC2=C(C(=O)N1[Si](C)(C)C)N([Si](C)(C)C)C(CNC1=CC=C(C(=O)NC(CCC(=O)NC(CCC(=O)O[Si](C)(C)C)C(=O)O)C(=O)O)C=C1)CN2