Showing structure for CC(C)(C)[Si](C)(C)OC1=CC(O)=C2CC(OC(=O)C3=CC(O)=C(O)C(O)=C3)C(C3=CC(O)=C(O)C4=C3C=C(C(=O)O)C=C(O)C4=O)OC2=C1