Showing structure for CC(C)(O)/C=C/C(=O)C(C)(O[Si](C)(C)C(C)(C)C)C1C(O[Si](C)(C)C(C)(C)C)CC2(C)C3CC=C4C(CC(O[Si](C)(C)C(C)(C)C)C(=O)C4(C)C)C3(C)C(=O)CC12C