Showing structure for C[Si](C)(C)OC1=CC(O)=CC2=C1C(=O)C(OC1OC(CO)C(O)C(O[Si](C)(C)C)C1OC(=O)/C=C/C1=CC=C(O)C=C1)=C(C1=CC=C(O)C=C1)O2