Ethyl 2-acetyl-2-methyl-6-(S-ethylthiocarboxy)-5-hexenoate                                                                                                                                                              在
                                                                                                                                                                                 samarium diiodide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 Ethyl (1R
*,2S
*,3S
*)-3-<(S-ethylthiocarboxy)methyl>-2-hydroxy-1,2-dimethylcyclopentanecarboxylate   、                                                                                             (1R,2R,3R)-3-Ethylsulfanylcarbonylmethyl-2-hydroxy-1,2-dimethyl-cyclopentanecarboxylic acid ethyl ester