Showing structure for C[Si](C)(C)OC(=O)C1OC(OC2=CC=C(/C=C/C3=CC(O)=CC(OC4OC(CO)C(O)C(O)C4O[Si](C)(C)C)=C3)C=C2)C(O)C(O)C1O[Si](C)(C)C