(2R,3R,4S,5S,6S)-methyl 5-(benzyloxy)-6-((2S,3S,6S)-6-((R)-1-(benzyloxy)propan-2-yl)-3-methyltetrahydro-2H-pyran-2-yl)-3-hydroxy-2,4-dimethylheptanoate                                                                                                                                                              在
                                                                                                                                                                                 20 wt.% Pd(OH)2 on activated carbon   、                                                                                                  
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以90%的产率得到(3R,4R,5S,6S)-4-hydroxy-6-((R)-1-((2S,3S,6S)-6-((R)-1-hydroxypropan-2-yl)-3-methyltetrahydro-2H-pyran-2-yl)-ethyl)-3,5-dimethyltetrahydro-2H-pyran-2-one