methyl (S)-2-((2R,3R,4S,5S,6S)-4-hydroxy-6-((2S,5R,6S,11S,E)-11-hydroxy-5,6-dimethoxy-11-phenylundec-3-en-2-yl)-2,3-dimethoxy-5-methyltetrahydro-2H-pyran-2-yl)propanoate                                                                                                                                                              在
                                                                                                                                                                                 barium hydroxide octahydrate   、                                                                                                  
sodium hydrogen sulfate   、                                                                                                  
水                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 12.0h,
                                                                                                                以73%的产率得到(2S)-2-[(2R,3R,4S,5S,6S)-4-hydroxy-6-[(E,2S,5R,6S,11S)-11-hydroxy-5,6-dimethoxy-11-phenylundec-3-en-2-yl]-2,3-dimethoxy-5-methyloxan-2-yl]propanoic acid