Showing structure for CC(C)(C)[Si](C)(C)OC1=C(O)C=C(C(=O)OC2=CC(O)=CC3=C2CC(OC(=O)C2=CC(O)=C(O[Si](C)(C)C(C)(C)C)C(O)=C2)C(C2=CC=C(O)C(O)=C2)O3)C=C1O