Showing structure for C[Si](C)(C)OC1=CC2=C3C(=C1O)OC(=O)C1=C(C4=C(O)C(O)=C(O)C5=C4C(=O)OC4C5OC(C(O)CO)C4O[Si](C)(C)C)C(O)=C(O)C(=C13)OC2=O