Showing structure for C[Si](C)(C)OC1C(=O)C2=C(OC3OC(CO)C(OC4OC(CO)C(O)C(O[Si](C)(C)C)C4O)C(O[Si](C)(C)C)C3O)C=C(O)C=C2OC1C1=CC=CC=C1