Cyclosiloxanes 3- 2-Hydroxy-3- 2-Methyl-1-Oxo-2-Propenyl Oxy Propenyl Propyl Me 3- 3-Hydroxy-3- 2-Methyl-1-Oxo-2-Propenyl Oxy Propenyl Propyl Me Me 3- Oxiranylmethoxy Propyl Cs-783 _ 5