Showing structure for C[Si](C)(C)OC1=CC2=C(CC(O)C(C3=CC(O[Si](C)(C)C)=C(O)C=C3C3=C(O)C=C(O)C4=C3OC(C3=CC=C(O)C(O)=C3)C(O[Si](C)(C)C)C4)O2)C(O[Si](C)(C)C)=C1