Showing structure for C[Si](C)(C)OC1=C(O)C2=C3C(=C1C1=C(O[Si](C)(C)C)C(O[Si](C)(C)C)=C4OC(=O)C5=C6C(=C(O[Si](C)(C)C)C(O)=C5)OC(=O)C1=C46)C(=O)OC1=C(O)C(O)=CC(=C13)C(=O)O2