(5R,6R,7R,8R)-5-(4-Benzyloxycarbonyloxy-3,5-dimethoxy-phenyl)-8-hydroxy-7-hydroxymethyl-5,6,7,8-tetrahydro-naphtho[2,3-d][1,3]dioxole-6-carboxylic acid ethyl ester                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                                                        以70%的产率得到(5R,6R,7R,8R)-8-Hydroxy-5-(4-hydroxy-3,5-dimethoxy-phenyl)-7-hydroxymethyl-5,6,7,8-tetrahydro-naphtho[2,3-d][1,3]dioxole-6-carboxylic acid ethyl ester