Showing structure for CC1NC(=O)C2CCCN2C(=O)CNC(=O)CNC(=O)C(CC2=CN([Si](C)(C)C)C3=CC=CC=C23)N([Si](C)(C)C)C(=O)C(CC2=CC=CC=C2)NC(=O)C2CCCN2C1=O