Showing structure for CC(C)(C)[Si](C)(C)OC1=C(OC2OCC(O[Si](C)(C)C(C)(C)C)C(O)C2O[Si](C)(C)C(C)(C)C)C(O)=CC2=C1C(=O)C=C(C1=CC=C(O)C(O)=C1)O2