Showing structure for C[Si](C)(C)OCC1OC(OC2=CC3=C(C(O[Si](C)(C)C)=C2O[Si](C)(C)C)C(=O)C(O[Si](C)(C)C)=C(C2=CC=C(O)C=C2)O3)C(O)C(O)C1O