1-Butyl-2-methyl-4-((1S,2R,3R,4R)-1,2,3,4,5-pentaacetoxy-pentyl)-1H-pyrrole-3-carboxylic acid ethyl ester                                                                                                                                                              在
                                                                                                                                                                                 
sodium methylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以92%的产率得到1-Butyl-2-methyl-4-((1S,2R,3R,4R)-1,2,3,4,5-pentahydroxy-pentyl)-1H-pyrrole-3-carboxylic acid ethyl ester