Showing structure for C[Si](C)(C)OC1=CC2=C(C(O[Si](C)(C)C)=C1)C1C3=C(C=C(O)C4=C3OC(C3=CC=C(O)C(O)=C3)C(O[Si](C)(C)C)C4)OC(C3=CC=C(O)C(O)=C3)(O2)C1O[Si](C)(C)C