Showing structure for C[Si](C)(C)OC1=C2C(=O)CC(C3=CC=C(O)C=C3)OC2=C(C2OC(CO)C(O)C(O)C2O[Si](C)(C)C)C(O)=C1C1OC(CO)C(O)C(O[Si](C)(C)C)C1O