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)OC(C(O[Si](C)(C)C)C(O)C(O)CO)=C5)C(O)=C(O[Si](C)(C)C)C(=C13)OC2=O