Showing structure for C[Si](C)(C)OC1=CC(O[Si](C)(C)C)=C2C(=O)C(OC3OC(COC(=O)CC(=O)O)C(O)C(O[Si](C)(C)C)C3O[Si](C)(C)C)=C(C3=CC=C(O)C=C3)OC2=C1