(2R,4R,5R,6R)-4,5-Bis-benzyloxy-6-((R)-1,2-dihydroxy-ethyl)-2-((2R,3R,4S,5R,6S)-3,4,5-tris-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-2-carboxylic acid methyl ester                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                                                                                                                            以90%的产率得到(2R,4R,5R,6R)-6-((R)-1,2-Dihydroxy-ethyl)-4,5-dihydroxy-2-((2R,3S,4S,5R,6S)-3,4,5-trihydroxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-2-carboxylic acid methyl ester