5-Acetoxy-2-acetyl-2-methyl-hept-6-ynoic acid ethyl ester                                                                                                                                                              在
                                                                                                                                                                                 
四(三苯基膦)钯   、                                                                                                  samarium diiodide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 3-Ethynyl-2-hydroxy-1,2-dimethyl-cyclopentanecarboxylic acid ethyl ester   、                                                                                             (1S,2R,3R)-3-Ethynyl-2-hydroxy-1,2-dimethyl-cyclopentanecarboxylic acid ethyl ester