merremoside b                                                                                                                                                              在
                                                                                                                                                                                 
sodium methylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 0.5h,
                                                                                                                以3 mg的产率得到methyl (11S)-11-[(2R,3R,4S,5R,6S)-5-[(2S,3R,4S,5R,6S)-3,4-dihydroxy-5-[(2S,3R,4S,5S,6S)-3-hydroxy-6-methyl-4-(2-methylpropanoyloxy)-5-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-6-methyloxan-2-yl]oxy-3,4-dihydroxy-6-methyloxan-2-yl]oxyhexadecanoate