Benzoic acid (3aR,5S,6R,6aR)-2,2-dimethyl-6-nitroso-tetrahydro-furo[2,3-d][1,3]dioxol-5-ylmethyl ester   、                                                                                      
1,3-环己二烯                                                                                                                                                                                              以
                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以87%的产率得到Benzoic acid (3aR,5S,6R,6aR)-2,2-dimethyl-6-(1S,4R)-2-oxa-3-aza-bicyclo[2.2.2]oct-5-en-3-yl-tetrahydro-furo[2,3-d][1,3]dioxol-5-ylmethyl ester