甲氧基-三氟甲基苯   、                                                                                      
(2R,3S,4R,6S)-1-aza-4-hydroxy-3-methyl-6-phenyl-8-oxa-7-oxobicyclo[4.3.0]nonane                                                                                                                                                              在
                                                                                                                                                                                 
吡啶   、                                                                                                  
4-二甲氨基吡啶                                                                                                                                  作用下,
                                                                                                                                                                                        反应 13.0h,
                                                                                                                生成                                                 (R)-3,3,3-Trifluoro-2-methoxy-2-phenyl-propionic acid (5S,7R,8S,8aR)-8-methyl-3-oxo-5-phenyl-hexahydro-oxazolo[3,4-a]pyridin-7-yl ester