Showing structure for C[Si](C)(C)OC1=C(O)C(O)=C(C2=C(O[Si](C)(C)C)C(O)=C3OC(=O)C4=C5C(=C(O)C(O)=C4)OC(=O)C2=C35)C2=C1C1OC(C(O)CO)C(O[Si](C)(C)C)C1OC2=O