Showing structure for C[Si](C)(C)OC1=CC(C(=O)O)=CC(OC(=O)C2=CC(O)=C(O[Si](C)(C)C)C(OC(=O)C3=CC(O[Si](C)(C)C)=C(O)C(O[Si](C)(C)C)=C3)=C2)=C1O