Showing structure for C[Si](C)(C)OC1=C(O)C=C(C(=O)OC2CC3=C(O)C=C4OC5(O[Si](C)(C)C)C(C(CO)O[Si](C)(C)C)OC(=O)C5(O)C4=C3OC2C2=CC(O)=C(O)C(O)=C2)C=C1O