[(2R,3R,4R,5R,6R)-4-Benzyloxy-6-isobutoxy-5-isopropoxy-2-(naphthalen-2-yloxymethyl)-tetrahydro-pyran-3-yloxy]-acetic acid tert-butyl ester                                                                                                                                                              在
                                                                                                                                                                                 
甲醇   、                                                                                                  lithium hydroxide                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 [(2R,3R,4R,5R,6R)-4-Benzyloxy-6-isobutoxy-5-isopropoxy-2-(naphthalen-2-yloxymethyl)-tetrahydro-pyran-3-yloxy]-acetic acid