Showing structure for C[Si](C)(C)OC1=CC=C(/C=C/C(=O)OCC2OC(OC3=CC4=C(O)C=C(O[Si](C)(C)C)C=C4[O+]=C3C3=CC(O)=C(O[Si](C)(C)C)C(O)=C3)C(O[Si](C)(C)C)C(O)C2O)C=C1