乙酸酐   、                                                                                      
(2R,3R,4S,5S,6R)-2-[(R)-4-((R)-3-Hydroxy-but-1-ynyl)-3,5,5-trimethyl-cyclohex-3-enyloxy]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol                                                                                                                                                              在
                                                                                                                                                                                 
吡啶                                                                                                                                  作用下,
                                                                                                                                                                                                                            以91%的产率得到Acetic acid (2R,3R,4S,5R,6R)-4,5-diacetoxy-2-[(R)-4-((R)-3-acetoxy-but-1-ynyl)-3,5,5-trimethyl-cyclohex-3-enyloxy]-6-acetoxymethyl-tetrahydro-pyran-3-yl ester