Showing structure for CC1C(=O)OCC1CC(O)C(C)(O[Si](C)(C)C(C)(C)C)C1(O[Si](C)(C)C(C)(C)C)CCC2(O[Si](C)(C)C(C)(C)C)C3CC=C4CC=CC(=O)C4(C)C3CCC21C