((3aR)-6t-benzoyloxy-5c-benzoyloxymethyl-2-phenyl-(3ar,6ac)-tetrahydro-furo[2,3-d][1,3]dioxol-2c-yl)-propynoic acid methyl ester                                                                                                                                                              在
                                                                                                                                                                                 
sodium methylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇   、                                                                                         
乙醚                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 4-((3a
R)-6
t-hydroxy-5
c-hydroxymethyl-2-phenyl-(3a
r,6a
c)-tetrahydro-furo[2,3-
d][1,3]dioxol-2
c-yl)-1(2)
H-pyrazole-3-carboxylic acid methyl ester