Showing structure for CC(C)(C)[Si](C)(C)OC(=O)CC1=C(/C=C/C(=O)OC(CC2=CC=C(O[Si](C)(C)C(C)(C)C)C(O[Si](C)(C)C(C)(C)C)=C2)C(=O)O[Si](C)(C)C(C)(C)C)C=CC(O)=C1O