methyl (2S,3S,4S,5R,6S)-3,4,5-triacetyloxy-6-[[3-methyl-1-[(2R)-1-propylpyrrolidin-2-yl]-6,7,8,9-tetrahydropyrazolo[3,4-c]isoquinolin-5-yl]oxy]oxane-2-carboxylate                                                                                                                                                              在
                                                                                                                                                                                 
水   、                                                                                                  lithium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以30 mg的产率得到(2S,3S,4S,5R,6S)-3,4,5-trihydroxy-6-(3-methyl-1-((R)-1-propylpyrrolidin-2-yl)-6,7,8,9-tetrahydro-3H-pyrazolo[3,4-c]isoquinoline-5-oxy)tetrahydro-2H-pyran-2-formic acid