Methanesulfonic acid (1S,2R,3aS,4S,5R,6aR)-4-cyano-3-oxo-octahydro-2,5-etheno-pentalen-1-yl ester                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                                                        以74%的产率得到Methanesulfonic acid (1S,2R,3aS,4S,5S,6aR)-4-cyano-3-oxo-octahydro-2,5-ethano-pentalen-1-yl ester