Showing structure for CC1=CC(O)=C2C(=O)C3=C(OC4OC(COC5OC(CO)C(O)C(O)C5O[Si](C)(C)C)C(O)C(O[Si](C)(C)C)C4O[Si](C)(C)C)C=CC=C3C(=O)C2=C1