Showing structure for COC1=C(C)C2=C(C(=O)OC2)C(O)=C1C/C=C(\C)CCC(=O)O[C@@H]1O[C@H](C(=O)O)[C@@H](O[Si](C)(C)C(C)(C)C)[C@H](O)[C@H]1O