Acetic acid (S)-3-benzyloxymethoxy-4-((4S,6S)-6-{(4S,6R)-6-[(S)-2-benzyloxymethoxy-3-((4R,6R)-6-hydroxymethyl-2,2-dimethyl-[1,3]dioxan-4-yl)-propyl]-2,2-dimethyl-[1,3]dioxan-4-ylmethyl}-2,2-dimethyl-[1,3]dioxan-4-yl)-butyl ester   、                                                                                      
2,2-二甲氧基丙烷                                                                                                                                                              在
                                                                                                                                         
palladium dihydroxide                                                                                                                                                                                                                               potassium carbonate   、                                                                                                  
氢气   、                                                                                                  camphor-10-sulfonic acid                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇   、                                                                                         
丙酮                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (4S,6S)-4-[[(4S)-2,2-dimethyl-1,3-dioxan-4-yl]methyl]-6-[[(4S,6S)-6-[[(4S,6R)-6-[[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl]-2,2-dimethyl-1,3-dioxan-4-yl]methyl]-2,2-dimethyl-1,3-dioxan-4-yl]methyl]-2,2-dimethyl-1,3-dioxane