(1S,4S)-1-[(S)-2,2-Bis-(4-methoxy-phenyl)-[1,3]dioxolan-4-yl]-4-(tert-butyl-dimethyl-silanyloxy)-7-oxa-bicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylic acid dimethyl ester                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                                                        以81%的产率得到(1S,4S)-1-[(S)-2,2-Bis-(4-methoxy-phenyl)-[1,3]dioxolan-4-yl]-4-(tert-butyl-dimethyl-silanyloxy)-7-oxa-bicyclo[2.2.1]hept-2-ene-2,3-dicarboxylic acid dimethyl ester