2-{5-[(1S,2S,3R,4R)-2,3-(isopropylidenedioxy)-4-(trityloxymethyl)cyclopentyl]-4-methoxycarbonyl-1H-pyrazolyl-3}acetamide                                                                                                                                                              在
                                                                                                                                                                                 
sodium ethanolate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 1.75h,
                                                                                                                以70%的产率得到3-[(1S,2S,3R,4R)-2,3-(isopropylidenedioxy)-4-(trityloxymethyl)cyclopentyl]-1H-pyrazolo[4,3-c]pyridine-4,6(5H,7H)-dione