methyl (benzyl 3,4:6,7-di-O-isopropylidene-α-D-manno-heptulofuranosid)onate                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (3aS,4R,6R,6aS)-6-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4-hydroxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxole-4-carboxylic acid methyl ester