Showing structure for C=CC1=C(C)C2=NC1CC1=NC(CC3=C(C)C(CCC(=O)O[Si](C)(C)C)=C(CC4N=C(C2)C(C)=C4CCC(=O)O)N3[Si](C)(C)C)C(CCC(=O)O[Si](C)(C)C)=C1C