Showing structure for CC(=O)OC1C(C)CCC2(O[Si](C)(C)C(C)(C)C)C3(C)CC4(O[Si](C)(C)C(C)(C)C)OC12C1(O[Si](C)(C)C(C)(C)C)C3(O)CC(O)(C(C)C)C41C